What is the Least Common Multiple of 49720 and 49740?

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 49720 and 49740 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 49720 and 49740, than apply into the LCM equation.

GCF(49720,49740) = 20
LCM(49720,49740) = ( 49720 × 49740) / 20
LCM(49720,49740) = 2473072800 / 20
LCM(49720,49740) = 123653640

Least Common Multiple (LCM) of 49720 and 49740 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 49720 and 49740. First we will calculate the prime factors of 49720 and 49740.

Prime Factorization of 49720

Prime Factorization of 49740

Now multiplying the highest exponent prime factors to calculate the LCM of 49720 and 49740.

LCM(49720,49740) = 2³ × 5¹ × 11¹ × 113¹ × 3¹ × 829¹
LCM(49720,49740) = 123653640