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# What is the highest common multiple of 91 and 217?

Updated: 4/28/2022

Wiki User

13y ago

In Mathematics there is either

the Highest Common Factor

or

the Least Common Multiple

The Highest Common Factor involves prime factors, and finding which are shared by the numbers under consideration....

the prime factors of 91 are 7 and 13

the prime factors of 217 are 7 and 31

So, the Highest Common Factor of 91 and 217 is 7.

The Least Common Multiple also involves prime factors, and multiplying all of them together, only using once any which are common to both numbers

As the only shared prime factor is 7 we need to multiply 7, 13 and 31 together - which gives 2,821.

Wiki User

13y ago

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Q: What is the highest common multiple of 91 and 217?
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