What is the Least Common Multiple of 7858 and 7866?

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 7858 and 7866 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7858 and 7866, than apply into the LCM equation.

GCF(7858,7866) = 2
LCM(7858,7866) = ( 7858 × 7866) / 2
LCM(7858,7866) = 61811028 / 2
LCM(7858,7866) = 30905514

Least Common Multiple (LCM) of 7858 and 7866 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 7858 and 7866. First we will calculate the prime factors of 7858 and 7866.

Prime Factorization of 7858

Prime Factorization of 7866

Now multiplying the highest exponent prime factors to calculate the LCM of 7858 and 7866.

LCM(7858,7866) = 2¹ × 3929¹ × 3² × 19¹ × 23¹
LCM(7858,7866) = 30905514