Solutions by everydaycalculation.com
The LCM of 21 and 1 is 21.
Since 1 cannot be a multiple of any number other than itself, and all other numbers are multiples of 1:-
The LCM of 21 and 1 is 21.
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Find least common multiple (LCM) of: 42 & 2 63 & 3 105 & 5 147 & 7 42 & 1 21 & 2 63 & 1 21 & 3 105 & 1 21 & 5 147 & 1 21 & 7
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