answer questions below please?

Question

How can you determine that 35 and 12 are relatively prime by looking at their prime facorizations? Can you find another pair of relatively prime numbers?

Answer 1

5x7 and 2^2x3 have no prime factors in common.

Another pair of relatively prime numbers would be 2x5 =10 and 3^2 = 9.

Actually, ANY pair that's only separated by 1 will be relatively prime, because any common factor has to divide 1.

So 99 and 100 is another example. So is 200 and 201.