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Earn +20 ptsQ: What is the lowest common factor of 21 and 28?
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What is the lowest common factor of 28 and 32?
1 and the highest common factor is 4
What is the HCM of 21 and 28?
The common multiples of 21 and 28 are 84, 168, 252, 336, ... and so on, never ending; so there is no real Highest Common Multiple.Do you mean:Highest Common Factor - the highest number which divides both 21 and 28 which is 7; orLowest Common Multiple - the lowest number which is a multiple of both 21 and 28 which is 84.
What is he greatest common factor of 21 and 28?
7
What is the greatest common factor of 21 28 42?
The GCF is 7.
What is the lowest common denominator of 18 and 28?
The lowest common multiple, or lowest common denominator, of 18 and 28 is 252.
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