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#1 Re: This is Cool » Fast way to find primes. » 2020-10-16 15:32:01

Did you know that the number one or number three the number 9 and the number 27 if you continue to add 30 too it as many times as you want and I'm pretty sure can never be a prime 21 +30=51,3+30=33,27+30=57,9+30=39if you noticed none of those are Prime's and any those four numbers you could continue to as 30 2 it's answer forever and now don't never be a prime meaning every third number ending in 1/3 7 or 9 and that form could never be a prime it's eliminate a lot of them

#2 Re: Help Me ! » All primes formula » 2020-10-15 13:47:34

Is it safe to say except for 3 13 23 you will never have three consecutive possible primes in a row meaning like three in a row that end in 3 like that showed above our 7 17  27 we took 1 3 7 and 9 and every possible number to Indian in it you will never have three in a row correct that end in it meaning the same number weatherby one three times seven three times but consecutive is that safe to say

#3 Help Me ! » Squaring numbers without the number » 2020-08-21 12:59:59

Knewlogik
Replies: 5

1 + 1= 2  1 - 1=0  1 * 1 is 1 and 1 divided by 1 is 1 take all four answers and add them together and you get four. Four is the first square, two times two equals four...... Now two plus two is four 2 - 2 is zero though 2 * 2 is 4 2 / 2 x 1... When adding a squared number 3 * 3you could do this for any number and it'll give you the square up the following number

#4 Re: Help Me ! » All primes formula » 2020-07-06 12:19:11

So I've been on this prime thing this whole time and I was just in spreadsheet I figured out a way to get every prime but it takes a little bit of work cuz I don't know how to write the formulas but if you were to for example I'm sure you're familiar with Excel start with the first line skip it and go to the second line which would be a2 you leave that square blank and then B2 you put the number two i C2 you leave blank D2 you put the number two can you repeat this all the way down forever infinity then you go down to the the list draw the numbers meaning the third line will have two blanks and then the number three to blanks number 3/4 vinyl have three blanks number for three blanks number for when you do this can you do it all the way through you'll be left with empty columns with the number at the bottom of it and the number at the bottom is always going to be a prime and it's only going to be a prime

#5 Re: Help Me ! » All primes formula » 2020-06-10 16:27:51

You don't have to check to see if it's in lowest terms that's the point of the number the d answer or denominator whatever will be the same as the number that you're dividing into the set d1=2520, d2=92378* D1

#6 Re: Help Me ! » All primes formula » 2020-06-10 16:22:40

sorry white 143 is not a prime I'll question for I should have switched to the three-digit number I was still using two two digit number on my calculator so sorry about that 232792560/143=1627920 so no prime

#7 Re: Help Me ! » All primes formula » 2020-06-09 20:33:56

How would you write that into something I can run on a computer

#8 Re: Help Me ! » All primes formula » 2020-06-09 20:32:49

My number work for 2 digit 3 digit use 232792560

#9 Re: Help Me ! » All primes formula » 2020-06-09 15:36:53

25200/73=345+15/73 73 is the denominator so 73 is prime
2520/77=327+3/11 11 is denominator so this is not prime since it's not 77
25200/91=276+12/13 13 is  not 91 so it's not prime
25200/143=176+32/143 143 is the denominator  so yes this is primesee

#10 Re: Help Me ! » All primes formula » 2020-06-09 03:11:43

Knewlogik wrote:

Well I've been crunching numbers and I figured out a way to pull the pr do I have an answer for the primes problem now all you have to do is take the number 2520 and divided by any number that is two digit add another zero if you want to do three digits add another zero if you want to do for digits add another zero if you want to do 5 digits and if the denominator of the mixed fraction is the same as the number you divided into my special number then it is a prime bottom line I've tried every prime so far has worked  example 25200/101=.             249 51/101.  just ignore the rest of the number and noticed the denominator is 101 so therefore it must be prime and only then is it prime

Prayer changes things and gives results

#11 Re: Help Me ! » All primes formula » 2020-06-09 00:33:12

2520 will do primes of three digits and below if you want to go any higher you just keep adding a zero to my magic number you want to divide any number into my magic number if you come up with the mixed number and it has a denominator that is the same as the number you divided by then you know it's prime l

#12 Re: Help Me ! » All primes formula » 2020-06-09 00:27:05

2520/P= P is prime are you could use any number you would like the only rule is you have to come up with a mixed number and the mixed number must be the same number as the number you are trying to see is prime so if I was to put 11 where the p is then the mixed number should have a denominator of 11 then I would know what to prime

#13 Re: Help Me ! » All primes formula » 2020-06-09 00:00:05

Knewlogik wrote:

Well I've been crunching numbers and I figured out a way to pull the pr do I have an answer for the primes problem now all you have to do is take the number 2520 and divided by any number that is two digit add another zero if you want to do three digits add another zero if you want to do for digits add another zero if you want to do 5 digits and if the denominator of the mixed fraction is the same as the number you divided into my special number then it is a prime bottom line I've tried every prime so far has worked  example 25200/101=.             249 51/101.  just ignore the rest of the number and noticed the denominator is 101 so therefore it must be prime and only then is it prime

Prayer changes things and gives results

#14 Re: Help Me ! » All primes formula » 2020-06-08 23:56:10

Well I've been crunching numbers and I figured out a way to pull the pr do I have an answer for the primes problem now all you have to do is take the number 2520 and divided by any number that is two digit add another zero if you want to do three digits add another zero if you want to do for digits add another zero if you want to do 5 digits and if the denominator of the mixed fraction is the same as the number you divided into my special number then it is a prime bottom line I've tried every prime so far has worked  example 25200/101=.             249 51/101.  just ignore the rest of the number and noticed the denominator is 101 so therefore it must be prime and only then is it prime

#15 Re: Help Me ! » All primes formula » 2020-05-19 15:09:20

Wouldn't it just be easier to eliminate any number that didn't end with 1,3,7,0r 9?? Then do you lr division thing

#16 Re: Help Me ! » All primes formula » 2020-05-12 11:36:44

What is the first prime it misses?

#17 Re: Help Me ! » All primes formula » 2020-05-11 22:50:10

bob bundy wrote:

hi Knewlogik

Welcome to the forum.  you've made two similar posts so I'll try to deal with both here.

If you start with 7 and keep adding 6 you get:

7,   13,   19,   25,   31,   37,   …..

Starting with 11 gives:

11,   17,   23,   29,   35,   41,   …..

Will you ever get the same number in both lists?  No; it'll never happen.

Because the two lists start 4 apart and both go up at the same rate, they never share a value.

Do you know about straight line graphs?  If not look here:

https://www.mathsisfun.com/equation_of_line.html

The first sequence has equation y = 7 +6x.  The second is y = 11 + 6x

These two lines have the same gradient (6) so they are parallel.  So they never cross.

For many, many years mathematicians have tried to find a formula for generating primes.  There are a few that give some primes, and many that look like they are working but then fail, but nobody has yet come up with a formula for all primes.  I suspect it doesn't exist but I don't think there is a proof that no such formula exists.

Best wishes, keep safe,

Bob


1,2,3,4,5,6
7,8,9,10,11,12
13,14,15,16,17,18... Now pretend that this is an infinite row that continues downward but instead of stopping at the tent position we're stopping at the sixth position and starting over Seven second line but would normally be the 10th position is now the 7th position and while adding 6 to the 7th line and where the position 7,11 is lying you will forever have all primes with some extras correct ex 07,13,19,25,31,37...       11,17,23,29,35,41,47... Does that make more sense now if you have graph paper you have all those numbers inside of each box with what he leaves you with is a straight line down both 11 and 7 throw with all primes including a couple extras how do I do window out the non primes

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