What is the Least Common Multiple of 3891 and 3907?

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 3891 and 3907 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 3891 and 3907, than apply into the LCM equation.

GCF(3891,3907) = 1
LCM(3891,3907) = ( 3891 × 3907) / 1
LCM(3891,3907) = 15202137 / 1
LCM(3891,3907) = 15202137

Least Common Multiple (LCM) of 3891 and 3907 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 3891 and 3907. First we will calculate the prime factors of 3891 and 3907.

Prime Factorization of 3891

Prime Factorization of 3907

Now multiplying the highest exponent prime factors to calculate the LCM of 3891 and 3907.

LCM(3891,3907) = 3¹ × 1297¹ × 3907¹
LCM(3891,3907) = 15202137