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LCM: 21
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Earn +20 ptsQ: What is the lowest common multiple of 7 and 21?
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What is common multiple of 3 and 7?
The lowest common multiple is 21
Lowest common multiple of 7 12 and 21?
Least Common Multiple (LCM) for 7 12 21 is 84
What is the lowest common multiple for 15 and 21?
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Lowest common multiple of 3 and 7?
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What is the least common multiple of 8 14 21?
you would have to make a factor tree for 8, 14, and 21. 8 equals 2*2*2. 14 equals 7*2 and 21 equals 7*3. Then you have to see what is the lowest number that they have in common. 8,14,21 do not have a number in commone so there isn't a common multiple.
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