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Earn +20 ptsQ: What 2 numbers have LCM of 20 and HCF of 2?
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Can two numbe215r have 20 as their HCF and 215 as their LCM?
No, 2 and 10 are factors of 20. The LCM of 2 and 10 is 10.
Which two numbers have an LCM of 18 and HCF of 3?
HCF of 3 means the numbers both have a prime factor of 3. LCM of 12 means that, between the numbers, there are factors of 2, 2 and 3. But these 2s cannot be shared, else the HCF would be greater. Therefore, the numbers will need to be 3 and 2x2x3, or 12.
What numbers do 14 and 4 go into evenly?
1, 2.
What are three pairs of numbers that have a LCM of 30 and a HCF of 1?
30 & 1. 15 & 2. 10 & 3.
What is the greatest common factor of 420 and 2646?
The greatest common factor of the numbers '420' and '2646' is '42'.
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