What is the Least Common Multiple of 82605 and 82620?

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 82605 and 82620 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 82605 and 82620, than apply into the LCM equation.

GCF(82605,82620) = 15
LCM(82605,82620) = ( 82605 × 82620) / 15
LCM(82605,82620) = 6824825100 / 15
LCM(82605,82620) = 454988340

Least Common Multiple (LCM) of 82605 and 82620 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 82605 and 82620. First we will calculate the prime factors of 82605 and 82620.

Prime Factorization of 82605

Prime Factorization of 82620

Now multiplying the highest exponent prime factors to calculate the LCM of 82605 and 82620.

LCM(82605,82620) = 3⁵ × 5¹ × 5507¹ × 2² × 17¹
LCM(82605,82620) = 454988340