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Anonymous
The only number that goes into both 5 and 21 is 1.
Wiki User
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Only the number 1.
1 and 3.
1, 5, 25, 125.
1, 5, 25.
LCM(25, 6) = 150.
6 because 6 goes into 6, and 6 goes into 120 with a remainder of 20.