What is the Least Common Multiple of 67621 and 67641?

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 67621 and 67641 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 67621 and 67641, than apply into the LCM equation.

GCF(67621,67641) = 1
LCM(67621,67641) = ( 67621 × 67641) / 1
LCM(67621,67641) = 4573952061 / 1
LCM(67621,67641) = 4573952061

Least Common Multiple (LCM) of 67621 and 67641 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 67621 and 67641. First we will calculate the prime factors of 67621 and 67641.

Prime Factorization of 67621

Prime Factorization of 67641

Now multiplying the highest exponent prime factors to calculate the LCM of 67621 and 67641.

LCM(67621,67641) = 19¹ × 3559¹ × 3¹ × 7¹ × 3221¹
LCM(67621,67641) = 4573952061