What is the Least Common Multiple of 80665 and 80680?

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 80665 and 80680 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 80665 and 80680, than apply into the LCM equation.

GCF(80665,80680) = 5
LCM(80665,80680) = ( 80665 × 80680) / 5
LCM(80665,80680) = 6508052200 / 5
LCM(80665,80680) = 1301610440

Least Common Multiple (LCM) of 80665 and 80680 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 80665 and 80680. First we will calculate the prime factors of 80665 and 80680.

Prime Factorization of 80665

Prime Factorization of 80680

Now multiplying the highest exponent prime factors to calculate the LCM of 80665 and 80680.

LCM(80665,80680) = 5¹ × 13¹ × 17¹ × 73¹ × 2³ × 2017¹
LCM(80665,80680) = 1301610440