What is the Least Common Multiple of 43983 and 43989?

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 43983 and 43989 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 43983 and 43989, than apply into the LCM equation.

GCF(43983,43989) = 3
LCM(43983,43989) = ( 43983 × 43989) / 3
LCM(43983,43989) = 1934768187 / 3
LCM(43983,43989) = 644922729

Least Common Multiple (LCM) of 43983 and 43989 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 43983 and 43989. First we will calculate the prime factors of 43983 and 43989.

Prime Factorization of 43983

Prime Factorization of 43989

Now multiplying the highest exponent prime factors to calculate the LCM of 43983 and 43989.

LCM(43983,43989) = 3⁵ × 181¹ × 11¹ × 31¹ × 43¹
LCM(43983,43989) = 644922729