What is the Least Common Multiple of 80560 and 80578?

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 80560 and 80578 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 80560 and 80578, than apply into the LCM equation.

GCF(80560,80578) = 2
LCM(80560,80578) = ( 80560 × 80578) / 2
LCM(80560,80578) = 6491363680 / 2
LCM(80560,80578) = 3245681840

Least Common Multiple (LCM) of 80560 and 80578 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 80560 and 80578. First we will calculate the prime factors of 80560 and 80578.

Prime Factorization of 80560

Prime Factorization of 80578

Now multiplying the highest exponent prime factors to calculate the LCM of 80560 and 80578.

LCM(80560,80578) = 2⁴ × 5¹ × 19¹ × 53¹ × 40289¹
LCM(80560,80578) = 3245681840