What is the Least Common Multiple of 31857 and 31861?

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 31857 and 31861 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31857 and 31861, than apply into the LCM equation.

GCF(31857,31861) = 1
LCM(31857,31861) = ( 31857 × 31861) / 1
LCM(31857,31861) = 1014995877 / 1
LCM(31857,31861) = 1014995877

Least Common Multiple (LCM) of 31857 and 31861 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31857 and 31861. First we will calculate the prime factors of 31857 and 31861.

Prime Factorization of 31857

Prime Factorization of 31861

Now multiplying the highest exponent prime factors to calculate the LCM of 31857 and 31861.

LCM(31857,31861) = 3¹ × 7¹ × 37¹ × 41¹ × 151¹ × 211¹
LCM(31857,31861) = 1014995877