What is the Least Common Multiple of 18781 and 18791?

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 18781 and 18791 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18781 and 18791, than apply into the LCM equation.

GCF(18781,18791) = 1
LCM(18781,18791) = ( 18781 × 18791) / 1
LCM(18781,18791) = 352913771 / 1
LCM(18781,18791) = 352913771

Least Common Multiple (LCM) of 18781 and 18791 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18781 and 18791. First we will calculate the prime factors of 18781 and 18791.

Prime Factorization of 18781

Prime Factorization of 18791

Now multiplying the highest exponent prime factors to calculate the LCM of 18781 and 18791.

LCM(18781,18791) = 7¹ × 2683¹ × 19¹ × 23¹ × 43¹
LCM(18781,18791) = 352913771