What is the Least Common Multiple of 3857 and 3861?

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 3857 and 3861 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 3857 and 3861, than apply into the LCM equation.

GCF(3857,3861) = 1
LCM(3857,3861) = ( 3857 × 3861) / 1
LCM(3857,3861) = 14891877 / 1
LCM(3857,3861) = 14891877

Least Common Multiple (LCM) of 3857 and 3861 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 3857 and 3861. First we will calculate the prime factors of 3857 and 3861.

Prime Factorization of 3857

Prime Factorization of 3861

Now multiplying the highest exponent prime factors to calculate the LCM of 3857 and 3861.

LCM(3857,3861) = 7¹ × 19¹ × 29¹ × 3³ × 11¹ × 13¹
LCM(3857,3861) = 14891877