Least Common Multiple of 643, 561, 431

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023


Use the LCM of two or more numbers Calculator to find the Least Common Multiple of numbers 643, 561, 431 i.e. 155471613 smallest integer divisible by all numbers.

Least common multiple (LCM) of 643, 561, 431 is 155471613.

LCM(643, 561, 431) = 155471613

LCM of 643, 561, 431

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

LCM of:

Least Common Multiple of 643,561,431

Least Common Multiple (LCM) of 643,561,431 is 155471613

Given numbers has no common factors except 1. So, there LCM is their product i.e 155471613

Least Common Multiple of 643,561,431 with GCF Formula

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

We need to calculate greatest common factor of 643,561,431 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(643,561,431) = 1

common factors(in case of two or more numbers have common factors) = 1

GCF(643,561,431) x common factors =1 x 1 = 1

LCM(643,561,431) = ( 643 × 561 × 431 ) / 1

LCM(643,561,431) = 155471613 / 1

LCM(643,561,431) = 155471613

∴ Least Common Multiple of 643,561,431 is 155471613

LCM of two or more Numbers Calculation Examples

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Frequently Asked Questions on LCM of 643, 561, 431

1. What is the LCM of 643, 561, 431?

Answer: LCM of 643, 561, 431 is 155471613.

2. What are the Factors of 155471613?

Answer: Factors of 155471613 are . There are integers that are factors of 155471613

3. How to Find the LCM of 643, 561, 431 ?

Least Common Multiple of 643, 561, 431.

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(643, 561, 431) = 3 x 11 x 17 x 431 x 643 = 155471613.