Factors of 51 are two numbers that, when multiplied together, equal the number 51. The factor pairings are as follows: The pair factor of 51 if 51 x 1 = 51 is (51, 1). Let's look at some more pairs, too: 1×51 = 51, (1, 51) is a pair factor of 51. 3×17 = 51, (3, 17) is a pair factor of 51. 17×3 = 51, (17, 3) is a pair factor of 51.
