Q: Is 13 divisible by 3?

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2+3+2+6=13 which is not divisible by 3 thus 2326 is not divisible by 3

There's a trick you can use: A number is divisible by 3 if and only if the sum of its digits is divisible by 3. Here 2+4+5+2 = 13. Is 13 divisible by 3? You decide.

The divisibility rule for 3 is as follows: If the sum of the digits of a number is divisible by 3 then the number is divisible by 3. For example, the number 21 is divisible by 3 since 2+1=3, and 3 is divisible by 3. The number 49 is not divisible by 3 since 4+9=13, and 13 is not divisible by 3.

No. Consider 13 or 23.

The divisibility rule for 3 is add up the digits and check for divisibility. 7+2+4 = 13.13 is not evenly divisible by 3 so 724 is not divisibleby 3.

no, it is divisible by 1, 5, 13, 65

No, it is divisible by 1, 3, 13, 39.

Yes 39 is divisible by 3. It would be 39 divided by 3 = 13

2+6+4+1=1313 is not divisible by 3 therefore 2641 ia not divisible by three.This rule works for 3, 9, 27 and 81

117 / 3 = 39 39 / 3 = 13 Giving us prime factors of 3, 3 and 13. Meaning it's divisible by: 3 3 * 3 = 9 3 * 13 = 39 13 So 117 is divisible by 3, 9, 13, and 39

No Just above it is 300, and as it is 13 more than 287 and 13 itself is not divisible by 3, then 287 is also not. Or 285 = 95 x 3 and 288 = 96 x 3 so 287 is not divisible by 3

3, 9, 13, and 39.

No, it is divisible by 3 and 13

1170 is.

-10

1, 13 1, 3, 7, 21

78 is evenly divisible by 1, 2, 3, and 13.

975

13 is prime. It is divisible by 1 and 13.

3 X 13 = 39 3 X 13 = 39 13x3=39

Not evenly. 585 is divisible by 3, 5, and 13.

39 is not divisible by 2, since it is odd. Looking at the next highest prime number 3, we see that it is divisible, so we divide by three until it is no longer divisible by 3: 39/3 = 13 13 is also prime, thus 3*13 is the prime factorization.

Unfortunately, the least common multiple in this case is rather large. 468 is the smallest number that is divisible by both 13 and 36. 36 is already divisible by 3 so 3 does not matter for this problem. 13 is prime and is not a factor of 36 so the first multiple of 13 that is divisible by 36 is 13 * 36 which is 468.

13 and all its multiples are divisible by 13.

6331 is divisible by 1, 13, 487, 6331