What is the Least Common Multiple of 40576 and 40580?

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 40576 and 40580 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 40576 and 40580, than apply into the LCM equation.

GCF(40576,40580) = 4
LCM(40576,40580) = ( 40576 × 40580) / 4
LCM(40576,40580) = 1646574080 / 4
LCM(40576,40580) = 411643520

Least Common Multiple (LCM) of 40576 and 40580 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40576 and 40580. First we will calculate the prime factors of 40576 and 40580.

Prime Factorization of 40576

Prime Factorization of 40580

Now multiplying the highest exponent prime factors to calculate the LCM of 40576 and 40580.

LCM(40576,40580) = 2⁷ × 317¹ × 5¹ × 2029¹
LCM(40576,40580) = 411643520