16 over 120, both nubers divisible by 2 so this is the same as 8 over 60, both numbers are divisible by 2 so this is the same as 4 over 30, both numbers are divisible by 2 so this is the same as 2 over 15. 2 is only divisible by 1 and 2 15 is only divisible by 1, 3, 5 and 15, so we can go no further 2 over 15 is the simplest form.
Nope. It's not divisible by 2.
15
None of them. 15 is divisible by 3 and 5
You can check by multiplying 15 by a couple numbers. 15 x 2 = 30 So 30 is divisible by 15. 15 x 3 = 45 15 x 4 = 60 15 x 5 = 75 45, 60, and 75 are all divisible by 15. Just increasing the number (2, 3, 4, 5, ...) to find more numbers divisible by 15.
no as 2 does not go into 15
3 yes, 2 no.
Yes, 30 divided by 15 is 2.
Divisibility tests:A: 5Last digit of the number is 0 or 5. Last digit of 15 is 5, so 15 is divisible by 15B: 3Sum the digits of the number; if this sum is divisible by 3, so is the original number. 1 + 5 = 6, which is divisible by 3, so 15 is divisible by 3C: 2Number is even (last digit is divisible by 2) 15 is odd, so 15 is not divisible by 2D: 1All numbers are divisible by 1. 15 is a number, so it is divisible by 1.Thus 15 is not divisible by C (2).
16 over 120, both nubers divisible by 2 so this is the same as 8 over 60, both numbers are divisible by 2 so this is the same as 4 over 30, both numbers are divisible by 2 so this is the same as 2 over 15. 2 is only divisible by 1 and 2 15 is only divisible by 1, 3, 5 and 15, so we can go no further 2 over 15 is the simplest form.
They are divisible by 2, 3, 4, 5, 6, 10, 12, 15, 30 and 60 at least.
Nope. It's not divisible by 2.
15
None of them. 15 is divisible by 3 and 5
You can check by multiplying 15 by a couple numbers. 15 x 2 = 30 So 30 is divisible by 15. 15 x 3 = 45 15 x 4 = 60 15 x 5 = 75 45, 60, and 75 are all divisible by 15. Just increasing the number (2, 3, 4, 5, ...) to find more numbers divisible by 15.
1 15 is only divisible by 1, 3, 5 and 15 26 is only divisible by 1, 2, 13 and 26
All numbers divisible by 5 (of which 15 is a multiple) have a final digit of 0 or 5. All numbers divisible by 3 (of which 15 is a multiple) have the sum of the digits totalling 3 or a multiple of 3. Therefore, a number is divisible by 15 if the sum of its digits total 3 or a multiple of 3 and its final digit is 0 or 5. Example : 32085 ; 3 + 2 + 0 + 8 + 5 = 18 which is divisible by 3. Final digit 5. This number is divisible by 15. (32085 ÷ 15 = 2139) 7420 : 7 + 4 + 2 + 0 = 13. This number is not divisible by 15.