What is the Least Common Multiple of 64380 and 64391?

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 64380 and 64391 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 64380 and 64391, than apply into the LCM equation.

GCF(64380,64391) = 1
LCM(64380,64391) = ( 64380 × 64391) / 1
LCM(64380,64391) = 4145492580 / 1
LCM(64380,64391) = 4145492580

Least Common Multiple (LCM) of 64380 and 64391 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 64380 and 64391. First we will calculate the prime factors of 64380 and 64391.

Prime Factorization of 64380

Prime Factorization of 64391

Now multiplying the highest exponent prime factors to calculate the LCM of 64380 and 64391.

LCM(64380,64391) = 2² × 3¹ × 5¹ × 29¹ × 37¹ × 19¹ × 3389¹
LCM(64380,64391) = 4145492580