What is the Least Common Multiple of 41420 and 41440?

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 41420 and 41440 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 41420 and 41440, than apply into the LCM equation.

GCF(41420,41440) = 20
LCM(41420,41440) = ( 41420 × 41440) / 20
LCM(41420,41440) = 1716444800 / 20
LCM(41420,41440) = 85822240

Least Common Multiple (LCM) of 41420 and 41440 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 41420 and 41440. First we will calculate the prime factors of 41420 and 41440.

Prime Factorization of 41420

Prime Factorization of 41440

Now multiplying the highest exponent prime factors to calculate the LCM of 41420 and 41440.

LCM(41420,41440) = 2⁵ × 5¹ × 19¹ × 109¹ × 7¹ × 37¹
LCM(41420,41440) = 85822240