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51 times 1
1 x 51, 3 x 17 = 51
nothing
11x11
12 squared.
it is a prime number
3*17 = 51
It is 3*17 = 51
51 x 2 = 102
8x6
1 x 51, 3 x 17, 17 x 3, 51 x 1 = 51
1*98
6x7=42