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Oh honey, the Highest Common Factor (HCF) of 5 and 7 is 1 because those two numbers don't have any common factors other than 1. The Lowest Common Multiple (LCM) of 5 and 7 is simply the product of the two numbers, which is 35. So there you have it, simple math for a simple question!
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What is the hcf and lcm of 5 and 15?
hcf(5, 15) = 5 lcm(5, 15) = 15.
What is the LCM of two that have no common factors greater than 1?
If there is no common factor greater than 1, then the lcm of those numbers is the product of those numbers. eg hcf(5, 7) = 1 → lcm(5, 7) = 5 x 7 = 35 eg hcf(4, 9) = 1 → lcm(4, 9) = 4 x 9 = 36
What is the HCF and the LCM of 616 and 728?
HCF = 56 LCM = 8008 616 = 2^3 x 7 x 11 728 = 2^3 x 7 x 13 hcf = 2^3 x 7 = 56 lcm = 2^3 x 7 x 11 x 13 = 8008
Which two numbers have an LCM of 60 and HCF of 5?
4
What is the hcf and the LCM of 10 and 15?
5 and 30, respectively.
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