Start by factoring each of the numbers.
7=7
12=2x2x3
14=2x7
Remove the duplicated factors. 7 is duplicated between 7 and 14; so remove one 7. 2 is duplicated between 12 and 14; so remove one 2. Multiply together the remaining factors. 7x2x2x3=84 Answer: 84
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The Least Common Multiple of 14, 20, and 22 is 1,540.
The least common multiple is the smallest positive number that is a multiple of two or more numbers. 14: 14, 28, 42, 56, 70, 84, 98 49: 98 The least common multiple for 14 and 49 and is 98.
LCM(14, 6, 8) = 168
1 and 2
The Least Common Multiple (LCM) for 42 70 84 is 420.The Greatest Common Factor (GCF) for 42 70 84 is 14.