What is the Least Common Multiple of 42798 and 42818?

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 42798 and 42818 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42798 and 42818, than apply into the LCM equation.

GCF(42798,42818) = 2
LCM(42798,42818) = ( 42798 × 42818) / 2
LCM(42798,42818) = 1832524764 / 2
LCM(42798,42818) = 916262382

Least Common Multiple (LCM) of 42798 and 42818 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42798 and 42818. First we will calculate the prime factors of 42798 and 42818.

Prime Factorization of 42798

Prime Factorization of 42818

Now multiplying the highest exponent prime factors to calculate the LCM of 42798 and 42818.

LCM(42798,42818) = 2¹ × 3¹ × 7¹ × 1019¹ × 79¹ × 271¹
LCM(42798,42818) = 916262382