What is the Least Common Multiple of 15398 and 15406?

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 15398 and 15406 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15398 and 15406, than apply into the LCM equation.

GCF(15398,15406) = 2
LCM(15398,15406) = ( 15398 × 15406) / 2
LCM(15398,15406) = 237221588 / 2
LCM(15398,15406) = 118610794

Least Common Multiple (LCM) of 15398 and 15406 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15398 and 15406. First we will calculate the prime factors of 15398 and 15406.

Prime Factorization of 15398

Prime Factorization of 15406

Now multiplying the highest exponent prime factors to calculate the LCM of 15398 and 15406.

LCM(15398,15406) = 2¹ × 7699¹ × 7703¹
LCM(15398,15406) = 118610794