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What is the LCM of 7 and 21?

Updated: 4/28/2022

Wiki User

∙ 8y ago

Best Answer

LCM is 21, which is the multiple of the highest power of prime factors in the given numbers (3 x 7).
The LCM is 21.

Wiki User

∙ 8y ago

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Wiki User

∙ 14y ago

The least common denominator would be 7. So the if it were a fraction being reduced. Seven goes into seven one time and seven goes into twenty-one three. So the fraction would be 3/1.

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Continue Learning about Other Math

What is the LCM of 7 21 and 5?

The LCM is 105.

What is the LCM of 7 21 35?

The LCM of 7 21 35 is 105

What is the LCM of 4 7 12 21?

LCM of 4 7 12 21 is 84

What is the LCM of 6 7 and 21?

The Least Common Multiple (LCM) of 6, 7, and 21 is 42.

What is the LCM of 7 21 and 84?

The LCM is 84.

Related questions

What is the LCM of 7 21 and 14?

The LCM is 42

What is the LCM of 7 21 and 5?

The LCM is 105.

What is the LCM of 7 12 and 21?

The LCM is 84.

What is the LCM of 7 3 21?

To find the Least Common Multiple (LCM) of 7, 3, and 21, we first need to identify the prime factors of each number. The prime factors of 7 are 7, of 3 are 3, and of 21 are 3 and 7. Then, we take the highest power of each prime factor that appears in any of the numbers. In this case, the LCM of 7, 3, and 21 is 21, as it includes the highest power of both 7 and 3.

What is the LCM of 5 7 21?

LCM of 5 7 21 is 105.

What is the LCM of 7 21 35?

The LCM of 7 21 35 is 105

What is the LCM of 10 21 and 7?

The LCM is 252.

What is the LCM od 14 7 and 21?

The LCM is 42.

What is the LCM of 3 7 and 21?

3=3*1 7=7*1 21=3*7 LCM=(3*7)=(21*1)=21

What is theLCM of 21 and 7?

LCM(21, 7) = 21

Lcm of 3 and 7?

21 is the LCM of 3 and 7

What is the LCM for 7 and 21?

21

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