What is the Least Common Multiple of 19215 and 19225?

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 19215 and 19225 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 19215 and 19225, than apply into the LCM equation.

GCF(19215,19225) = 5
LCM(19215,19225) = ( 19215 × 19225) / 5
LCM(19215,19225) = 369408375 / 5
LCM(19215,19225) = 73881675

Least Common Multiple (LCM) of 19215 and 19225 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 19215 and 19225. First we will calculate the prime factors of 19215 and 19225.

Prime Factorization of 19215

Prime Factorization of 19225

Now multiplying the highest exponent prime factors to calculate the LCM of 19215 and 19225.

LCM(19215,19225) = 3² × 5² × 7¹ × 61¹ × 769¹
LCM(19215,19225) = 73881675