What is the Least Common Multiple of 9855 and 9865?

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 9855 and 9865 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 9855 and 9865, than apply into the LCM equation.

GCF(9855,9865) = 5
LCM(9855,9865) = ( 9855 × 9865) / 5
LCM(9855,9865) = 97219575 / 5
LCM(9855,9865) = 19443915

Least Common Multiple (LCM) of 9855 and 9865 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 9855 and 9865. First we will calculate the prime factors of 9855 and 9865.

Prime Factorization of 9855

Prime Factorization of 9865

Now multiplying the highest exponent prime factors to calculate the LCM of 9855 and 9865.

LCM(9855,9865) = 3³ × 5¹ × 73¹ × 1973¹
LCM(9855,9865) = 19443915