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Earn +20 ptsQ: What is the hcf of 18 and 9?
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What is the HCF of 18 54 and 81?
hcf(18, 54, 81) = 9. Using prime factorization: 18 = 2 x 3^2 54 = 2 x 3^3 81 = 3^4 hcf = 3^2 = 9
What is the HCF of 182736?
If you mean: 18, 27 and 36 then it is 9
What two numbers have LCM of 18 and HCF of 3?
They are 9 and 6
What is the hcf of 9 and 54 and 18?
Oh, isn't that a lovely question! To find the highest common factor (HCF) of 9, 54, and 18, we first look at the factors of each number. The factors of 9 are 1, 3, and 9; the factors of 54 are 1, 2, 3, 6, 9, 18, 27, and 54; and the factors of 18 are 1, 2, 3, 6, 9, and 18. The largest number that appears in the factors of all three numbers is 9, so the HCF of 9, 54, and 18 is 9. Isn't that just a happy little number to find?
What is the HCF of 36 and 54?
The GCF is 18.
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