They are both divisible by 1 and 19.
D
No. 1,197 is divisible by these numbers: 1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197.
Yes. Because both 300 and 399 are multiples of 3, the fraction 300/399 can be reduced to 100/133. To quickly check for divisibility by 3, simply add up the digits of the number. If the result is divisible by 3, so is the original number. For example, 399 is divisible by 3 because 3 + 9 + 9 = 21 which is divisible by 3.
133
133 divided by 7 = 19 so 133 is divisible by 7
No, because if you add the three digits together, you get 7 which isn't divisible by 3
No. 133+7 =140 which is divisible by 7, so 133 is also divisible by 7. (It is 7 * 19.)
No.
They are both divisible by 1 and 19.
D
All are divisible by 3 if you don't mind that the answer is not a whole number. However, if you are looking for the number which is evenly divisible by 3 (resulting in a whole number) then it is 153. 153/3 = 51.
Yes.
No. 1,197 is divisible by these numbers: 1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197.
567 is divisible by 9. 32 and 133 are not.
665 is divisible by 1, 5, 7, 19, 35, 133, 665.
132 is divisible by 1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132.