What is the Least Common Multiple of 78538 and 78542?

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 78538 and 78542 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78538 and 78542, than apply into the LCM equation.

GCF(78538,78542) = 2
LCM(78538,78542) = ( 78538 × 78542) / 2
LCM(78538,78542) = 6168531596 / 2
LCM(78538,78542) = 3084265798

Least Common Multiple (LCM) of 78538 and 78542 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78538 and 78542. First we will calculate the prime factors of 78538 and 78542.

Prime Factorization of 78538

Prime Factorization of 78542

Now multiplying the highest exponent prime factors to calculate the LCM of 78538 and 78542.

LCM(78538,78542) = 2¹ × 107¹ × 367¹ × 173¹ × 227¹
LCM(78538,78542) = 3084265798