What is the Least Common Multiple of 1915 and 1923?

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 1915 and 1923 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1915 and 1923, than apply into the LCM equation.

GCF(1915,1923) = 1
LCM(1915,1923) = ( 1915 × 1923) / 1
LCM(1915,1923) = 3682545 / 1
LCM(1915,1923) = 3682545

Least Common Multiple (LCM) of 1915 and 1923 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 1915 and 1923. First we will calculate the prime factors of 1915 and 1923.

Prime Factorization of 1915

Prime Factorization of 1923

Now multiplying the highest exponent prime factors to calculate the LCM of 1915 and 1923.

LCM(1915,1923) = 5¹ × 383¹ × 3¹ × 641¹
LCM(1915,1923) = 3682545