What is the Least Common Multiple of 63891 and 63909?

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 63891 and 63909 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 63891 and 63909, than apply into the LCM equation.

GCF(63891,63909) = 9
LCM(63891,63909) = ( 63891 × 63909) / 9
LCM(63891,63909) = 4083209919 / 9
LCM(63891,63909) = 453689991

Least Common Multiple (LCM) of 63891 and 63909 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 63891 and 63909. First we will calculate the prime factors of 63891 and 63909.

Prime Factorization of 63891

Prime Factorization of 63909

Now multiplying the highest exponent prime factors to calculate the LCM of 63891 and 63909.

LCM(63891,63909) = 3⁵ × 31¹ × 229¹ × 263¹
LCM(63891,63909) = 453689991