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divisors of 10 are 1,2,5 and 10, so highest number that can be divide 10 is 10,10 is also a factor of 420 Hence 10 is the highest common factor of 10 and 420.

least multiplier of 420 is 420, also 420 is multiplier of 10 hence LCM is 420

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2011-02-28 09:39:51
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Q: What is the HCF and LCM of 10 and 420?
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