1, 3, 13, 39.
Only 1.
1 and 3 will go into both numbers evenly
The numbers that go into both 39 and 52 evenly are their common divisors. The greatest common divisor (GCD) of 39 and 52 is 13. Therefore, the common divisors are 1 and 13.
1, 3, 13, 39.
1, 2, 3, 6, 13, 26, 39, 78.
It does not go evenly.
Factors of 39: 1, 3, 13, 39 Factors of 26: 1, 2, 13, 26 Common factors: 1, 13.
1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156.
Because there are only four numbers that divide into those numbers evenly.
no numbers!
1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156
Nothing can go evenly into 21 or 17. They are both odd numbers and therefore cannot be evenly divided.