What is the Least Common Multiple of 43620 and 43628?

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 43620 and 43628 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 43620 and 43628, than apply into the LCM equation.

GCF(43620,43628) = 4
LCM(43620,43628) = ( 43620 × 43628) / 4
LCM(43620,43628) = 1903053360 / 4
LCM(43620,43628) = 475763340

Least Common Multiple (LCM) of 43620 and 43628 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 43620 and 43628. First we will calculate the prime factors of 43620 and 43628.

Prime Factorization of 43620

Prime Factorization of 43628

Now multiplying the highest exponent prime factors to calculate the LCM of 43620 and 43628.

LCM(43620,43628) = 2² × 3¹ × 5¹ × 727¹ × 13¹ × 839¹
LCM(43620,43628) = 475763340