What is the Least Common Multiple of 21742 and 21751?

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 21742 and 21751 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 21742 and 21751, than apply into the LCM equation.

GCF(21742,21751) = 1
LCM(21742,21751) = ( 21742 × 21751) / 1
LCM(21742,21751) = 472910242 / 1
LCM(21742,21751) = 472910242

Least Common Multiple (LCM) of 21742 and 21751 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 21742 and 21751. First we will calculate the prime factors of 21742 and 21751.

Prime Factorization of 21742

Prime Factorization of 21751

Now multiplying the highest exponent prime factors to calculate the LCM of 21742 and 21751.

LCM(21742,21751) = 2¹ × 7¹ × 1553¹ × 21751¹
LCM(21742,21751) = 472910242