What is the Least Common Multiple of 64391 and 64403?

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 64391 and 64403 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 64391 and 64403, than apply into the LCM equation.

GCF(64391,64403) = 1
LCM(64391,64403) = ( 64391 × 64403) / 1
LCM(64391,64403) = 4146973573 / 1
LCM(64391,64403) = 4146973573

Least Common Multiple (LCM) of 64391 and 64403 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 64391 and 64403. First we will calculate the prime factors of 64391 and 64403.

Prime Factorization of 64391

Prime Factorization of 64403

Now multiplying the highest exponent prime factors to calculate the LCM of 64391 and 64403.

LCM(64391,64403) = 19¹ × 3389¹ × 64403¹
LCM(64391,64403) = 4146973573