What is the Least Common Multiple of 21523 and 21539?

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 21523 and 21539 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 21523 and 21539, than apply into the LCM equation.

GCF(21523,21539) = 1
LCM(21523,21539) = ( 21523 × 21539) / 1
LCM(21523,21539) = 463583897 / 1
LCM(21523,21539) = 463583897

Least Common Multiple (LCM) of 21523 and 21539 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 21523 and 21539. First we will calculate the prime factors of 21523 and 21539.

Prime Factorization of 21523

Prime Factorization of 21539

Now multiplying the highest exponent prime factors to calculate the LCM of 21523 and 21539.

LCM(21523,21539) = 21523¹ × 7¹ × 17¹ × 181¹
LCM(21523,21539) = 463583897