Least Common Multiple of 21, 1940

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 21, 1940 i.e. 40740 smallest integer divisible by all numbers.

Least common multiple (LCM) of 21, 1940 is 40740.

LCM(21, 1940) = 40740

LCM of 21, 1940

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

LCM of:

Least Common Multiple of 21,1940

Least Common Multiple (LCM) of 21,1940 is 40740

Given numbers has no common factors except 1. So, there LCM is their product i.e 40740

Least Common Multiple of 21,1940 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 21,1940 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(21,1940) = 1

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

GCF(21,1940) x common factors =1 x 1 = 1

LCM(21,1940) = ( 21 × 1940 ) / 1

LCM(21,1940) = 40740 / 1

LCM(21,1940) = 40740

∴ Least Common Multiple of 21,1940 is 40740

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 21, 1940

1. What is the LCM of 21, 1940?

Answer: LCM of 21, 1940 is 40740.

2. What are the Factors of 40740?

Answer: Factors of 40740 are . There are integers that are factors of 40740

3. How to Find the LCM of 21, 1940 ?

Least Common Multiple of 21, 1940.

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(21, 1940) = 2 x 2 x 3 x 5 x 7 x 97 = 40740.