What is the Least Common Multiple of 78981 and 78985?

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 78981 and 78985 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78981 and 78985, than apply into the LCM equation.

GCF(78981,78985) = 1
LCM(78981,78985) = ( 78981 × 78985) / 1
LCM(78981,78985) = 6238314285 / 1
LCM(78981,78985) = 6238314285

Least Common Multiple (LCM) of 78981 and 78985 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78981 and 78985. First we will calculate the prime factors of 78981 and 78985.

Prime Factorization of 78981

Prime Factorization of 78985

Now multiplying the highest exponent prime factors to calculate the LCM of 78981 and 78985.

LCM(78981,78985) = 3¹ × 7¹ × 3761¹ × 5¹ × 15797¹
LCM(78981,78985) = 6238314285