There are three numbers that fit those requirements.
2 x 2 x 17 = 68 2 x 2 x 19 = 76 7 x 13 = 91 No common prime factors; the GCF is 1.
No.
208 is 2x2x2x2x13
it is 2 and 3
93 = 3 × 31
Prime factorizations are expressions of numbers as products of prime factors. The prime factorization of 30 is 2 x 3 x 5.
91 = 7*13
At least two.
22 = 2 × 11
An unlimited number.
409 is a prime number.