Least Common Multiple of 90, 21, 49

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

• Least Common Multiple of 90, 21, 49 by common division method
• Least Common Multiple of 90, 21, 49 with GCF Formula

∴ So the LCM of the given numbers is 3 x 7 x 30 x 1 x 7 = 4410

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 90,21,49 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(90,21,49) = 1

common factors(in case of two or more numbers have common factors) = 21

GCF(90,21,49) x common factors =1 x 21 = 21

LCM(90,21,49) = ( 90 × 21 × 49 ) / 21

LCM(90,21,49) = 92610 / 21

LCM(90,21,49) = 4410

∴ Least Common Multiple of 90,21,49 is 4410

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

• LCM of 38, 19, 55
• LCM of 55, 83, 43
• LCM of 92, 19, 56
• LCM of 47, 67, 11
• LCM of 39, 20, 88

1. What is the LCM of 90, 21, 49?

Answer: LCM of 90, 21, 49 is 4410.

2. What are the Factors of 4410?

Answer: Factors of 4410 are . There are integers that are factors of 4410

3. How to Find the LCM of 90, 21, 49 ?

Least Common Multiple of 90, 21, 49.

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(90, 21, 49) = 2 x 3 x 3 x 5 x 7 x 7 = 4410.