What is the Least Common Multiple of 40740 and 40760?

Least common multiple or lowest common denominator (lcd) can be calculated in two way; with the LCM formula calculation of greatest common factor (GCF), or multiplying the prime factors with the highest exponent factor.

Least Common Multiple of 40740 and 40760 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 40740 and 40760, than apply into the LCM equation.

GCF(40740,40760) = 20
LCM(40740,40760) = ( 40740 × 40760) / 20
LCM(40740,40760) = 1660562400 / 20
LCM(40740,40760) = 83028120

Least Common Multiple (LCM) of 40740 and 40760 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40740 and 40760. First we will calculate the prime factors of 40740 and 40760.

Prime Factorization of 40740

Prime Factorization of 40760

Now multiplying the highest exponent prime factors to calculate the LCM of 40740 and 40760.

LCM(40740,40760) = 2³ × 3¹ × 5¹ × 7¹ × 97¹ × 1019¹
LCM(40740,40760) = 83028120