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The only multiplies that go into 3 is 1x3 because 3 is a prime number.
2,4,6,8,10.............
3 and 7 multiplies to 21 and equals to 10
3, 6, and 9
-3 and -3
-21
these are the multiples of 3 3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57,60
-3 and -3.
-1
7
21
MmsMms