What is the Least Common Multiple of 21342 and 21353?

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 21342 and 21353 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 21342 and 21353, than apply into the LCM equation.

GCF(21342,21353) = 1
LCM(21342,21353) = ( 21342 × 21353) / 1
LCM(21342,21353) = 455715726 / 1
LCM(21342,21353) = 455715726

Least Common Multiple (LCM) of 21342 and 21353 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 21342 and 21353. First we will calculate the prime factors of 21342 and 21353.

Prime Factorization of 21342

Prime Factorization of 21353

Now multiplying the highest exponent prime factors to calculate the LCM of 21342 and 21353.

LCM(21342,21353) = 2¹ × 3¹ × 3557¹ × 131¹ × 163¹
LCM(21342,21353) = 455715726