0
Anonymous
The numbers that go into 21 evenly are 1, 3, 7, 21.
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1, 3, 7, 21.
67
The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, and 42.
2
1, 2, 3, 6, 9, 18 go into 18 evenly.
the answer is 1 and 67
Just 1.