What is the Least Common Multiple of 61809 and 61818?

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 61809 and 61818 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 61809 and 61818, than apply into the LCM equation.

GCF(61809,61818) = 3
LCM(61809,61818) = ( 61809 × 61818) / 3
LCM(61809,61818) = 3820908762 / 3
LCM(61809,61818) = 1273636254

Least Common Multiple (LCM) of 61809 and 61818 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 61809 and 61818. First we will calculate the prime factors of 61809 and 61818.

Prime Factorization of 61809

Prime Factorization of 61818

Now multiplying the highest exponent prime factors to calculate the LCM of 61809 and 61818.

LCM(61809,61818) = 3¹ × 11¹ × 1873¹ × 2¹ × 10303¹
LCM(61809,61818) = 1273636254