What is the Least Common Multiple of 29820 and 29840?

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 29820 and 29840 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 29820 and 29840, than apply into the LCM equation.

GCF(29820,29840) = 20
LCM(29820,29840) = ( 29820 × 29840) / 20
LCM(29820,29840) = 889828800 / 20
LCM(29820,29840) = 44491440

Least Common Multiple (LCM) of 29820 and 29840 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 29820 and 29840. First we will calculate the prime factors of 29820 and 29840.

Prime Factorization of 29820

Prime Factorization of 29840

Now multiplying the highest exponent prime factors to calculate the LCM of 29820 and 29840.

LCM(29820,29840) = 2⁴ × 3¹ × 5¹ × 7¹ × 71¹ × 373¹
LCM(29820,29840) = 44491440