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Earn +20 ptsQ: What is the HCF of 6 and 21?
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What is the least common of 6 and 21?
It is 1 but the HCF is 3
I need to know which pair of numbers in relatively prime 10 and 21 or 12 and 54 or 15 and 27 or 21 and 38?
hcf(10, 21) = 1 ⇒ 10 & 21 relatively prime hcf(12, 54) = 6 ⇒ 12 & 54 not relatively prime hcf(15, 27) = 3 ⇒ 15 & 27 not relatively prime hcf(21, 38) = 1 ⇒ 21 & 38 relatively prime
What is the HCF for 21 n 84?
The GCF is 24.
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The HCF is 7.
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The GCF is 21.
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The GCF is 7.
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The HCF of 525 and 231 is 21
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