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Wiki User
No whole numbers, if that's what you mean, except for the trivial 1 x 13. 13 is a Prime number.
1 and 13
13 x 1
6.5 and 2
12 and 13
-17
13*13
13 and 3
Multiply to do 39 and + - to 1
How about: 13 times 13 = 169
-1
5*13 = 65
9*13 = 117
27
13*31=403 13 and 31 are prime numbers.