What is the Least Common Multiple of 83400 and 83415?

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 83400 and 83415 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 83400 and 83415, than apply into the LCM equation.

GCF(83400,83415) = 15
LCM(83400,83415) = ( 83400 × 83415) / 15
LCM(83400,83415) = 6956811000 / 15
LCM(83400,83415) = 463787400

Least Common Multiple (LCM) of 83400 and 83415 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 83400 and 83415. First we will calculate the prime factors of 83400 and 83415.

Prime Factorization of 83400

Prime Factorization of 83415

Now multiplying the highest exponent prime factors to calculate the LCM of 83400 and 83415.

LCM(83400,83415) = 2³ × 3¹ × 5² × 139¹ × 67¹ × 83¹
LCM(83400,83415) = 463787400