What is the Least Common Multiple of 21738 and 21754?

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 21738 and 21754 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 21738 and 21754, than apply into the LCM equation.

GCF(21738,21754) = 2
LCM(21738,21754) = ( 21738 × 21754) / 2
LCM(21738,21754) = 472888452 / 2
LCM(21738,21754) = 236444226

Least Common Multiple (LCM) of 21738 and 21754 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 21738 and 21754. First we will calculate the prime factors of 21738 and 21754.

Prime Factorization of 21738

Prime Factorization of 21754

Now multiplying the highest exponent prime factors to calculate the LCM of 21738 and 21754.

LCM(21738,21754) = 2¹ × 3¹ × 3623¹ × 73¹ × 149¹
LCM(21738,21754) = 236444226