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Earn +20 ptsQ: What is the HCF and LCM of 18 and 42?
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How do you find sets of two numbers if HCF and LCM are known?
You cannot. The numbers 2 and 12 have hcf = 2 and LCM = 12 The numbers 4 and 6 also have hcf = 2 and LCM = 12 So if you just knew the hcf and LCM you would not know which of the two was the required pair.
What is the LCM of 42 and 12?
The LCM is: 84
What is the HCF of 75 and 18?
The GCF is 3.
What is the LCM of 36 42 98?
The LCM is 1764.
What is the HCF of 8 and 18?
factors of 8: 1, 2, 4, 8 factors of 18: 1, 2, 3, 6, 9, 18 HCF: 2
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