17 X 3 = 51, so no.
111 is not prime.
47, yes. 51, no.
Yes.
Yes. The factors of 51 are: 1, 3, 17, and 51
yes
Yes
no, it is not 49 and 64 are.
No, 51 is not a prime number. It is divisible by 3 and 17 as well as by 1 and itself.
51 is not a prime number. It is divisible by 3.
Yes. 51/3 = 17. To find out if a number is divisible by three simply add up the values of the digits and see if that number is divisible by three. 51 -- 5 + 1 = 6 -- 6 is divisible by 3 so 51 is as well.
Yes. Except 0.
Yes. The number 51 is an odd number because any number that isn't divisible by 2 is odd. Ex: Even: 2,4,6,8,10,12,14,16,18,20,etc. Odd: 1,3,5,7,9,11,13,15,17,19,21,etc.