What is the Least Common Multiple of 18771 and 18781?

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 18771 and 18781 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18771 and 18781, than apply into the LCM equation.

GCF(18771,18781) = 1
LCM(18771,18781) = ( 18771 × 18781) / 1
LCM(18771,18781) = 352538151 / 1
LCM(18771,18781) = 352538151

Least Common Multiple (LCM) of 18771 and 18781 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18771 and 18781. First we will calculate the prime factors of 18771 and 18781.

Prime Factorization of 18771

Prime Factorization of 18781

Now multiplying the highest exponent prime factors to calculate the LCM of 18771 and 18781.

LCM(18771,18781) = 3¹ × 6257¹ × 7¹ × 2683¹
LCM(18771,18781) = 352538151