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Earn +20 ptsQ: What do -4 and -21 have in common?
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Are 4 and 21 relatively prime?
Yes, 4 and 21 are relatively prime. Numbers that are relatively prime only have the number 1 as a common factor. That is the case with 4 and 21.
What is the least common multiple of 7 18 and 21?
The least common multiple of the numbers 7, 18 and 21 is 126.
What are the least common multiple of 21 and 24?
Least Common Multiple (LCM) for 21 24 is 168.
What are the least common multiple and greatest common factor of 21 and 84?
Since 21 is a factor of 84, it is automatically the GCF. Since 84 is a multiple of 21, it is automatically the LCM.
What is the set of common factors of twenty one and twenty eight?
Common factors of what? More info or this is not possible to answer.
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