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#1 Re: Help Me ! » How many integers between 1 and 999 have 3 divisors? » 2025-01-20 03:38:44

Thanks for the advice guys

I didn't think about the prime number thing haha, I was able to come up with something after that

So I think the answer is realising squares of prime numbers have three divisors, to find how many there are find all prime numbers below 999 square rooted

This should be up to 961 which was 31 squared

If I count this I get 11 prime numbers

I think this is right.

#2 Help Me ! » How many integers between 1 and 999 have 3 divisors? » 2025-01-20 01:15:49

kittenlover206
Replies: 14

I am solving a daily math problem it's asking:

How many integers between 1 and 999 have 3 divisors?

I'm not sure where to start with this. I don't think there's a systematic way to find how many have 3 divisors

I also don't think there is a way to use algebra for this

Could anyone give advice on where to start. I'm kind of stumped.

#3 Jokes » Chemistry joke » 2025-01-04 10:27:06

kittenlover206
Replies: 1

Q: Why can you never trust atoms?
A: They make up everything.

Q: Why do you never hear from sodium
A: Because it's alway's' Na

#4 Introductions » hi there » 2025-01-04 10:19:55

kittenlover206
Replies: 2

hi my older brother used to use this forum a 7-8 years back and said it helped him

thanks for helping him, i hope i can be help you guys too

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