1, 2 and 4.
9 divides both 36 and 45 equally. with no remainders.
21
509915 divides by 72845 7 times.
7 and 13
5
36 is a square no its no. that divides into it is 6!
1
1 and 199
151 is a prime number, which means it can only be divided evenly by 1 and itself. Therefore, there is no other number that divides into 151 equally.
The mistake is that there is a greater common factor than 18. It's 36. 36 divides 36 evenly. 36 divides 72 evenly.
2. Aduhh.
3 and 67, 1 and 201.