What is the Least Common Multiple of 18643 and 18661?

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 18643 and 18661 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18643 and 18661, than apply into the LCM equation.

GCF(18643,18661) = 1
LCM(18643,18661) = ( 18643 × 18661) / 1
LCM(18643,18661) = 347897023 / 1
LCM(18643,18661) = 347897023

Least Common Multiple (LCM) of 18643 and 18661 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18643 and 18661. First we will calculate the prime factors of 18643 and 18661.

Prime Factorization of 18643

Prime Factorization of 18661

Now multiplying the highest exponent prime factors to calculate the LCM of 18643 and 18661.

LCM(18643,18661) = 103¹ × 181¹ × 18661¹
LCM(18643,18661) = 347897023