Least Common Multiple of 91, 55, 21

Least common multiple or lowest common denominator (lcd) can be calculated in three ways

• Least Common Multiple of 91, 55, 21 by common division method
• Least Common Multiple of 91, 55, 21 with GCF Formula

∴ So the LCM of the given numbers is 7 x 13 x 55 x 3 = 15015

The formula of LCM is LCM(a₁,a₂,a₃....,a_n) = ( a₁ × a₂ × a₃ × .... × a_n) / GCF(a₁,a₂,a₃....,a_n) x common factors(if more than 2 numbers have common factors).

We need to calculate greatest common factor of 91,55,21 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(91,55,21) = 1

common factors(in case of two or more numbers have common factors) = 7

GCF(91,55,21) x common factors =1 x 7 = 7

LCM(91,55,21) = ( 91 × 55 × 21 ) / 7

LCM(91,55,21) = 105105 / 7

LCM(91,55,21) = 15015

∴ Least Common Multiple of 91,55,21 is 15015

Here are some samples of LCM of two or more Numbers calculations.

• LCM of 22, 82, 61
• LCM of 30, 55, 47
• LCM of 14, 79, 43
• LCM of 37, 35, 56
• LCM of 43, 71, 72

1. What is the LCM of 91, 55, 21?

Answer: LCM of 91, 55, 21 is 15015.

2. What are the Factors of 15015?

Answer: Factors of 15015 are . There are integers that are factors of 15015

3. How to Find the LCM of 91, 55, 21 ?

Least Common Multiple of 91, 55, 21.

Step 1: Divide all the numbers with common prime numbers having remainder zero.

Step 2: Then multiply all the prime factors with last row quotient of common division that is LCM(91, 55, 21) = 3 x 5 x 7 x 11 x 13 = 15015.