What is the Least Common Multiple of 66621 and 66639?

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 66621 and 66639 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 66621 and 66639, than apply into the LCM equation.

GCF(66621,66639) = 3
LCM(66621,66639) = ( 66621 × 66639) / 3
LCM(66621,66639) = 4439556819 / 3
LCM(66621,66639) = 1479852273

Least Common Multiple (LCM) of 66621 and 66639 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 66621 and 66639. First we will calculate the prime factors of 66621 and 66639.

Prime Factorization of 66621

Prime Factorization of 66639

Now multiplying the highest exponent prime factors to calculate the LCM of 66621 and 66639.

LCM(66621,66639) = 3¹ × 53¹ × 419¹ × 97¹ × 229¹
LCM(66621,66639) = 1479852273