1 and 13
13 x 1
No whole numbers, if that's what you mean, except for the trivial 1 x 13. 13 is a prime number.
12 and 13
-17
13*13
Oh, dude, you're hitting me with the math questions, huh? Like, the numbers that multiply to 156 are 12 and 13. Yeah, it's like they team up and boom, there you have it, 156. Math, man, it's wild.
1 and 13
13 x 1
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.