Many, but not all. An example is 93. 93 is equal to 31x3 and not only 93x1. Another example is 63. 63 is equal to 21x3 and not only 63x1.
61, 67, are prime numbers - 63 is not - 63 is a composite number.
273, 93, 3, 3The prime numbers are 33
93 = 3 x 31
3 x 31 = 93
two prime numbers when added together will equal 63: 2 + 61
37 is already prime. 3 x 31 = 93 No common prime factors, the GCF is 1.
3*3*7=63
2 is a prime because it can only be multiplied by 1x6 but 63 isn't
No.
73 is prime.
3 and 7 are the two different prime factors of 63. Prime factorization of 63 is 3 x 3 x 7.