Least Common Multiple of 320, 420, 644

Q: How to Find the LCM of 320, 420, 644 ?

Least Common Multiple of 320, 420, 644 = 154560 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(320, 420, 644) = 2 x 2 x 2 x 2 x 2 x 2 x 3 x 5 x 7 x 23 = 154560.

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 320, 420, 644 i.e. 154560 smallest integer divisible by all numbers.

Least common multiple (LCM) of 320, 420, 644 is 154560.

LCM(320, 420, 644) = 154560

LCM of 320, 420, 644

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

Least Common Multiple of 320, 420, 644 by common division method
Least Common Multiple of 320, 420, 644 with GCF Formula

Least Common Multiple of 320,420,644

Least Common Multiple (LCM) of 320,420,644 is 154560

2	320, 420, 644
2	160, 210, 322
5	80, 105, 161
7	16, 21, 161
	16, 3, 23

∴ So the LCM of the given numbers is 2 x 2 x 5 x 7 x 16 x 3 x 23 = 154560

Least Common Multiple of 320,420,644 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 320,420,644 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(320,420,644) = 4

common factors(in case of two or more numbers have common factors) = 140

GCF(320,420,644) x common factors =4 x 140 = 560

LCM(320,420,644) = ( 320 × 420 × 644 ) / 560

LCM(320,420,644) = 86553600 / 560

LCM(320,420,644) = 154560

∴ Least Common Multiple of 320,420,644 is 154560

LCM of two or more Numbers Calculation Examples

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

Frequently Asked Questions on LCM of 320, 420, 644

1. What is the LCM of 320, 420, 644?

Answer: LCM of 320, 420, 644 is 154560.

2. What are the Factors of 154560?

Answer: Factors of 154560 are . There are integers that are factors of 154560

3. How to Find the LCM of 320, 420, 644 ?

Least Common Multiple of 320, 420, 644.

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(320, 420, 644) = 2 x 2 x 2 x 2 x 2 x 2 x 3 x 5 x 7 x 23 = 154560.