What is the Least Common Multiple of 61569 and 61581?

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 61569 and 61581 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 61569 and 61581, than apply into the LCM equation.

GCF(61569,61581) = 3
LCM(61569,61581) = ( 61569 × 61581) / 3
LCM(61569,61581) = 3791480589 / 3
LCM(61569,61581) = 1263826863

Least Common Multiple (LCM) of 61569 and 61581 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 61569 and 61581. First we will calculate the prime factors of 61569 and 61581.

Prime Factorization of 61569

Prime Factorization of 61581

Now multiplying the highest exponent prime factors to calculate the LCM of 61569 and 61581.

LCM(61569,61581) = 3² × 6841¹ × 13¹ × 1579¹
LCM(61569,61581) = 1263826863