What is the Least Common Multiple of 19731 and 19746?

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 19731 and 19746 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 19731 and 19746, than apply into the LCM equation.

GCF(19731,19746) = 3
LCM(19731,19746) = ( 19731 × 19746) / 3
LCM(19731,19746) = 389608326 / 3
LCM(19731,19746) = 129869442

Least Common Multiple (LCM) of 19731 and 19746 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 19731 and 19746. First we will calculate the prime factors of 19731 and 19746.

Prime Factorization of 19731

Prime Factorization of 19746

Now multiplying the highest exponent prime factors to calculate the LCM of 19731 and 19746.

LCM(19731,19746) = 3² × 6577¹ × 2¹ × 1097¹
LCM(19731,19746) = 129869442