What is the Least Common Multiple of 61555 and 61561?

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 61555 and 61561 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 61555 and 61561, than apply into the LCM equation.

GCF(61555,61561) = 1
LCM(61555,61561) = ( 61555 × 61561) / 1
LCM(61555,61561) = 3789387355 / 1
LCM(61555,61561) = 3789387355

Least Common Multiple (LCM) of 61555 and 61561 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 61555 and 61561. First we will calculate the prime factors of 61555 and 61561.

Prime Factorization of 61555

Prime Factorization of 61561

Now multiplying the highest exponent prime factors to calculate the LCM of 61555 and 61561.

LCM(61555,61561) = 5¹ × 13¹ × 947¹ × 61561¹
LCM(61555,61561) = 3789387355