What is the Least Common Multiple of 78257 and 78261?

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 78257 and 78261 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78257 and 78261, than apply into the LCM equation.

GCF(78257,78261) = 1
LCM(78257,78261) = ( 78257 × 78261) / 1
LCM(78257,78261) = 6124471077 / 1
LCM(78257,78261) = 6124471077

Least Common Multiple (LCM) of 78257 and 78261 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78257 and 78261. First we will calculate the prime factors of 78257 and 78261.

Prime Factorization of 78257

Prime Factorization of 78261

Now multiplying the highest exponent prime factors to calculate the LCM of 78257 and 78261.

LCM(78257,78261) = 139¹ × 563¹ × 3¹ × 19¹ × 1373¹
LCM(78257,78261) = 6124471077