What is the Least Common Multiple of 78396 and 78404?

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 78396 and 78404 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78396 and 78404, than apply into the LCM equation.

GCF(78396,78404) = 4
LCM(78396,78404) = ( 78396 × 78404) / 4
LCM(78396,78404) = 6146559984 / 4
LCM(78396,78404) = 1536639996

Least Common Multiple (LCM) of 78396 and 78404 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78396 and 78404. First we will calculate the prime factors of 78396 and 78404.

Prime Factorization of 78396

Prime Factorization of 78404

Now multiplying the highest exponent prime factors to calculate the LCM of 78396 and 78404.

LCM(78396,78404) = 2² × 3¹ × 47¹ × 139¹ × 17¹ × 1153¹
LCM(78396,78404) = 1536639996