What is the Least Common Multiple of 20518 and 20536?

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 20518 and 20536 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20518 and 20536, than apply into the LCM equation.

GCF(20518,20536) = 2
LCM(20518,20536) = ( 20518 × 20536) / 2
LCM(20518,20536) = 421357648 / 2
LCM(20518,20536) = 210678824

Least Common Multiple (LCM) of 20518 and 20536 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20518 and 20536. First we will calculate the prime factors of 20518 and 20536.

Prime Factorization of 20518

Prime Factorization of 20536

Now multiplying the highest exponent prime factors to calculate the LCM of 20518 and 20536.

LCM(20518,20536) = 2³ × 10259¹ × 17¹ × 151¹
LCM(20518,20536) = 210678824