What is the Least Common Multiple of 72770 and 72785?

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 72770 and 72785 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 72770 and 72785, than apply into the LCM equation.

GCF(72770,72785) = 5
LCM(72770,72785) = ( 72770 × 72785) / 5
LCM(72770,72785) = 5296564450 / 5
LCM(72770,72785) = 1059312890

Least Common Multiple (LCM) of 72770 and 72785 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 72770 and 72785. First we will calculate the prime factors of 72770 and 72785.

Prime Factorization of 72770

Prime Factorization of 72785

Now multiplying the highest exponent prime factors to calculate the LCM of 72770 and 72785.

LCM(72770,72785) = 2¹ × 5¹ × 19¹ × 383¹ × 14557¹
LCM(72770,72785) = 1059312890