Least Common Multiple of 638, 978

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 638, 978 i.e. 311982 smallest integer divisible by all numbers.

Least common multiple (LCM) of 638, 978 is 311982.

LCM(638, 978) = 311982

LCM of 638, 978

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

LCM of:

Least Common Multiple of 638,978

Least Common Multiple (LCM) of 638,978 is 311982

2 638, 978
319, 489

∴ So the LCM of the given numbers is 2 x 319 x 489 = 311982

Least Common Multiple of 638,978 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 638,978 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(638,978) = 2

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

GCF(638,978) x common factors =2 x 1 = 2

LCM(638,978) = ( 638 × 978 ) / 2

LCM(638,978) = 623964 / 2

LCM(638,978) = 311982

∴ Least Common Multiple of 638,978 is 311982

LCM of two or more Numbers Calculation Examples

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Frequently Asked Questions on LCM of 638, 978

1. What is the LCM of 638, 978?

Answer: LCM of 638, 978 is 311982.

2. What are the Factors of 311982?

Answer: Factors of 311982 are . There are integers that are factors of 311982

3. How to Find the LCM of 638, 978 ?

Least Common Multiple of 638, 978.

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(638, 978) = 2 x 3 x 11 x 29 x 163 = 311982.