What is the Least Common Multiple of 43781 and 43789?

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 43781 and 43789 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 43781 and 43789, than apply into the LCM equation.

GCF(43781,43789) = 1
LCM(43781,43789) = ( 43781 × 43789) / 1
LCM(43781,43789) = 1917126209 / 1
LCM(43781,43789) = 1917126209

Least Common Multiple (LCM) of 43781 and 43789 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 43781 and 43789. First we will calculate the prime factors of 43781 and 43789.

Prime Factorization of 43781

Prime Factorization of 43789

Now multiplying the highest exponent prime factors to calculate the LCM of 43781 and 43789.

LCM(43781,43789) = 43781¹ × 43789¹
LCM(43781,43789) = 1917126209