What is the Least Common Multiple of 23720 and 23740?

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 23720 and 23740 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 23720 and 23740, than apply into the LCM equation.

GCF(23720,23740) = 20
LCM(23720,23740) = ( 23720 × 23740) / 20
LCM(23720,23740) = 563112800 / 20
LCM(23720,23740) = 28155640

Least Common Multiple (LCM) of 23720 and 23740 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 23720 and 23740. First we will calculate the prime factors of 23720 and 23740.

Prime Factorization of 23720

Prime Factorization of 23740

Now multiplying the highest exponent prime factors to calculate the LCM of 23720 and 23740.

LCM(23720,23740) = 2³ × 5¹ × 593¹ × 1187¹
LCM(23720,23740) = 28155640