What is the Least Common Multiple of 82805 and 82815?

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 82805 and 82815 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 82805 and 82815, than apply into the LCM equation.

GCF(82805,82815) = 5
LCM(82805,82815) = ( 82805 × 82815) / 5
LCM(82805,82815) = 6857496075 / 5
LCM(82805,82815) = 1371499215

Least Common Multiple (LCM) of 82805 and 82815 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 82805 and 82815. First we will calculate the prime factors of 82805 and 82815.

Prime Factorization of 82805

Prime Factorization of 82815

Now multiplying the highest exponent prime factors to calculate the LCM of 82805 and 82815.

LCM(82805,82815) = 5¹ × 16561¹ × 3¹ × 5521¹
LCM(82805,82815) = 1371499215