Math Is Fun Forum

Gopal

Guest

Prime factor

A number x = abcabc is a six-digit number where a , b , c are any three digits , not necessarily distinct , whose product is non-zero. Can you find three of its prime factors? If so list the three numbers.

Bob

Administrator

Registered: 2010-06-20

Posts: 10,640

Re: Prime factor

hi Gopal

Welcome to the forum.

Hint:  abc times 1001

Bob

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Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you!  …………….Bob

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Prime factor

Hi;

I am not sure I understand your question but abcabc = 1001 (100 a + 10 b + c). The three factors are obvious now.

Oh sorry, I did not see Bob's answer. I will include a little computer art that I generated so that my post is not just a duplicate...

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In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.