What is the Least Common Multiple of 82470 and 82480?

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 82470 and 82480 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 82470 and 82480, than apply into the LCM equation.

GCF(82470,82480) = 10
LCM(82470,82480) = ( 82470 × 82480) / 10
LCM(82470,82480) = 6802125600 / 10
LCM(82470,82480) = 680212560

Least Common Multiple (LCM) of 82470 and 82480 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 82470 and 82480. First we will calculate the prime factors of 82470 and 82480.

Prime Factorization of 82470

Prime Factorization of 82480

Now multiplying the highest exponent prime factors to calculate the LCM of 82470 and 82480.

LCM(82470,82480) = 2⁴ × 3¹ × 5¹ × 2749¹ × 1031¹
LCM(82470,82480) = 680212560