three and 17
3 x17 is 51 51 is not a prime number it is composite. use this rule : You wil know a number is divisible by 3 if you add up the digits. if the sum is a multiple of 3 then that number is divisible by 3. i.e.: 51 5+1 =6 6 is divisible by 3 so 51 is divisible by 3. 51/3= 17
1, as are all numbers. oh, and 17.
1, 3, 7, 17, 21, 51, 119, 357
3, 5, 15, 17, 25, 51, 75, 85, 255, 425.
All but 56789 are.
Anyone who takes the trouble to ask this would get a quicker answer by trying it for themselves. You can divide it by 3, but you will have a remainder. For some people that means you can't divide it by 3. but in principle, any number can be divided by 3, for example 10/3 is three and one third. Harder to represent in the decimal system, but in base 9 instead of base 10, the answer is 3.
51 and 54 are divisible by 3.
No, but it is divisible by 1, 3, 17, 51.
No. 51 is not evenly divisible by four.
51 is.
9/51=0.176470588
1, 3, 17, 51
5 + 1 = 6 which is divisible by 3, so 51 is divisible by 3. [3 x 17 = 51]
47 is a prime number and is divisible by 1 and 47 only. 51 is divisible by 1, 3, 17, 51.
No. 51 is not evenly divisible by 12.
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.