What is the Least Common Multiple of 20523 and 20543?

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 20523 and 20543 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20523 and 20543, than apply into the LCM equation.

GCF(20523,20543) = 1
LCM(20523,20543) = ( 20523 × 20543) / 1
LCM(20523,20543) = 421603989 / 1
LCM(20523,20543) = 421603989

Least Common Multiple (LCM) of 20523 and 20543 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20523 and 20543. First we will calculate the prime factors of 20523 and 20543.

Prime Factorization of 20523

Prime Factorization of 20543

Now multiplying the highest exponent prime factors to calculate the LCM of 20523 and 20543.

LCM(20523,20543) = 3¹ × 6841¹ × 20543¹
LCM(20523,20543) = 421603989