What is the Least Common Multiple of 78468 and 78481?

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 78468 and 78481 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78468 and 78481, than apply into the LCM equation.

GCF(78468,78481) = 13
LCM(78468,78481) = ( 78468 × 78481) / 13
LCM(78468,78481) = 6158247108 / 13
LCM(78468,78481) = 473711316

Least Common Multiple (LCM) of 78468 and 78481 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78468 and 78481. First we will calculate the prime factors of 78468 and 78481.

Prime Factorization of 78468

Prime Factorization of 78481

Now multiplying the highest exponent prime factors to calculate the LCM of 78468 and 78481.

LCM(78468,78481) = 2² × 3¹ × 13¹ × 503¹ × 6037¹
LCM(78468,78481) = 473711316