What is the Least Common Multiple of 15408 and 15417?

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 15408 and 15417 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15408 and 15417, than apply into the LCM equation.

GCF(15408,15417) = 9
LCM(15408,15417) = ( 15408 × 15417) / 9
LCM(15408,15417) = 237545136 / 9
LCM(15408,15417) = 26393904

Least Common Multiple (LCM) of 15408 and 15417 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15408 and 15417. First we will calculate the prime factors of 15408 and 15417.

Prime Factorization of 15408

Prime Factorization of 15417

Now multiplying the highest exponent prime factors to calculate the LCM of 15408 and 15417.

LCM(15408,15417) = 2⁴ × 3³ × 107¹ × 571¹
LCM(15408,15417) = 26393904