Least Common Multiple of 640, 685

Q: How to Find the LCM of 640, 685 ?

Least Common Multiple of 640, 685 = 87680 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(640, 685) = 2 x 2 x 2 x 2 x 2 x 2 x 2 x 5 x 137 = 87680.

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 640, 685 i.e. 87680 smallest integer divisible by all numbers.

Least common multiple (LCM) of 640, 685 is 87680.

LCM(640, 685) = 87680

LCM of 640, 685

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

Least Common Multiple of 640, 685 by common division method
Least Common Multiple of 640, 685 with GCF Formula

Least Common Multiple of 640,685

Least Common Multiple (LCM) of 640,685 is 87680

5	640, 685
	128, 137

∴ So the LCM of the given numbers is 5 x 128 x 137 = 87680

Least Common Multiple of 640,685 with GCF Formula

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 640,685 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(640,685) = 5

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

GCF(640,685) x common factors =5 x 1 = 5

LCM(640,685) = ( 640 × 685 ) / 5

LCM(640,685) = 438400 / 5

LCM(640,685) = 87680

∴ Least Common Multiple of 640,685 is 87680

LCM of two or more Numbers Calculation Examples

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Frequently Asked Questions on LCM of 640, 685

1. What is the LCM of 640, 685?

Answer: LCM of 640, 685 is 87680.

2. What are the Factors of 87680?

Answer: Factors of 87680 are . There are integers that are factors of 87680

3. How to Find the LCM of 640, 685 ?

Least Common Multiple of 640, 685.

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(640, 685) = 2 x 2 x 2 x 2 x 2 x 2 x 2 x 5 x 137 = 87680.