What is the Least Common Multiple of 81821 and 81837?

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 81821 and 81837 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81821 and 81837, than apply into the LCM equation.

GCF(81821,81837) = 1
LCM(81821,81837) = ( 81821 × 81837) / 1
LCM(81821,81837) = 6695985177 / 1
LCM(81821,81837) = 6695985177

Least Common Multiple (LCM) of 81821 and 81837 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81821 and 81837. First we will calculate the prime factors of 81821 and 81837.

Prime Factorization of 81821

Prime Factorization of 81837

Now multiplying the highest exponent prime factors to calculate the LCM of 81821 and 81837.

LCM(81821,81837) = 17¹ × 4813¹ × 3³ × 7¹ × 433¹
LCM(81821,81837) = 6695985177