SOLUTION: Tell wether the number is prime or composite. If it is composite,write its prime factorization. <b> 8. 345 Any help with this equation would be GREATLY appreciated.

Algebra ->  Equations -> SOLUTION: Tell wether the number is prime or composite. If it is composite,write its prime factorization. <b> 8. 345 Any help with this equation would be GREATLY appreciated.      Log On


   

Question 107990: Tell wether the number is prime or composite. If it is composite,write its prime factorization.
8. 345
Any help with this equation would be GREATLY appreciated.
Answer by HyperBrain(694) About Me  (Show Source):
You can put this solution on YOUR website!
This is composite because it ends with 5---a signal that a number is divisible by 5

Let's divide and divide...

345%2F5=69
69%2F3=23
23%2F23=1

We divided by 3, 5, and 23. Thus, the prime factorization of 345 is 3%2A5%2A23

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HyperBrain!