Thursday

April 24, 2014

April 24, 2014

Posted by **mathrocks** on Monday, September 14, 2009 at 10:37am.

- math -
**bobpursley**, Monday, September 14, 2009 at 10:41am315 is first divisible by 5. I assume you know the divisibility rules.

61*5

Next, 61. Isn't that prime?

http://www.icteachers.co.uk/children/sats/primes.htm#1

**Related Questions**

Math - Find the smallest prime number N such that the following is true: The ...

mathematics - Find the smallest prime number N such that the following is true: ...

math - Hello, and thank you in advance for your help! I'm writing on behalf of ...

Math - I have a question that I answered and I'm not sure that it is right. Here...

Algebra 2 word problem - Just wanted to check to see if these are correct. Thank...

elementary math - show that 1,078 and 3,315 are relatively prime

elementry math - Show that 1,078 and 3,315 are relatively prime

Factoring and Prime - I am still having troulbe with these. Her is another one I...

Algebra - Explain why x^2 + 5x + 8 is prime (not factorable). How do you know? ...

Algebra - Explain why x^2 +5x + 8 is prime(not factorable) How do you know? Give...