What is the Least Common Multiple of 61643 and 61661?

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 61643 and 61661 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 61643 and 61661, than apply into the LCM equation.

GCF(61643,61661) = 1
LCM(61643,61661) = ( 61643 × 61661) / 1
LCM(61643,61661) = 3800969023 / 1
LCM(61643,61661) = 3800969023

Least Common Multiple (LCM) of 61643 and 61661 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 61643 and 61661. First we will calculate the prime factors of 61643 and 61661.

Prime Factorization of 61643

Prime Factorization of 61661

Now multiplying the highest exponent prime factors to calculate the LCM of 61643 and 61661.

LCM(61643,61661) = 61643¹ × 197¹ × 313¹
LCM(61643,61661) = 3800969023