73 is 9 more than the product of 4 and 16
4x + 9 = 73 4x = 64 x = 16
73
73-39+84 = 117
73
No. It's the product of 73 and 137. (Both of those are primes.)
4x + 9 = 73 4x = 64 x = 16
73
73
73
73
73
73-39+84 = 117
73
73
73
5
73 - 89 = -16 -16 + 84 = 68 89 - 73 = 16 16 + 84 = 100