What is the Least Common Multiple of 15620 and 15634?

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 15620 and 15634 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15620 and 15634, than apply into the LCM equation.

GCF(15620,15634) = 2
LCM(15620,15634) = ( 15620 × 15634) / 2
LCM(15620,15634) = 244203080 / 2
LCM(15620,15634) = 122101540

Least Common Multiple (LCM) of 15620 and 15634 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15620 and 15634. First we will calculate the prime factors of 15620 and 15634.

Prime Factorization of 15620

Prime Factorization of 15634

Now multiplying the highest exponent prime factors to calculate the LCM of 15620 and 15634.

LCM(15620,15634) = 2² × 5¹ × 11¹ × 71¹ × 7817¹
LCM(15620,15634) = 122101540