0
Anonymous
1*0=0
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5
1 x 62, 2 x 31, 31 x 2, 62 x 1.
101
There are 6 multiplication problems that equal 15. 5 x 3 -5 x 3 -3 x 5 15 x 1 -15 x 1 -1 x 15 what about 1/2 x 30 ?
1 is the identity element of multiplication.