What is the Least Common Multiple of 81078 and 81087?

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 81078 and 81087 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81078 and 81087, than apply into the LCM equation.

GCF(81078,81087) = 3
LCM(81078,81087) = ( 81078 × 81087) / 3
LCM(81078,81087) = 6574371786 / 3
LCM(81078,81087) = 2191457262

Least Common Multiple (LCM) of 81078 and 81087 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81078 and 81087. First we will calculate the prime factors of 81078 and 81087.

Prime Factorization of 81078

Prime Factorization of 81087

Now multiplying the highest exponent prime factors to calculate the LCM of 81078 and 81087.

LCM(81078,81087) = 2¹ × 3¹ × 13513¹ × 151¹ × 179¹
LCM(81078,81087) = 2191457262