What is the Least Common Multiple of 43615 and 43621?

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 43615 and 43621 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 43615 and 43621, than apply into the LCM equation.

GCF(43615,43621) = 1
LCM(43615,43621) = ( 43615 × 43621) / 1
LCM(43615,43621) = 1902529915 / 1
LCM(43615,43621) = 1902529915

Least Common Multiple (LCM) of 43615 and 43621 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 43615 and 43621. First we will calculate the prime factors of 43615 and 43621.

Prime Factorization of 43615

Prime Factorization of 43621

Now multiplying the highest exponent prime factors to calculate the LCM of 43615 and 43621.

LCM(43615,43621) = 5¹ × 11¹ × 13¹ × 61¹ × 181¹ × 241¹
LCM(43615,43621) = 1902529915