What is the Least Common Multiple of 20615 and 20634?

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 20615 and 20634 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20615 and 20634, than apply into the LCM equation.

GCF(20615,20634) = 19
LCM(20615,20634) = ( 20615 × 20634) / 19
LCM(20615,20634) = 425369910 / 19
LCM(20615,20634) = 22387890

Least Common Multiple (LCM) of 20615 and 20634 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20615 and 20634. First we will calculate the prime factors of 20615 and 20634.

Prime Factorization of 20615

Prime Factorization of 20634

Now multiplying the highest exponent prime factors to calculate the LCM of 20615 and 20634.

LCM(20615,20634) = 5¹ × 7¹ × 19¹ × 31¹ × 2¹ × 3¹ × 181¹
LCM(20615,20634) = 22387890