What is the Least Common Multiple of 81787 and 81804?

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 81787 and 81804 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81787 and 81804, than apply into the LCM equation.

GCF(81787,81804) = 17
LCM(81787,81804) = ( 81787 × 81804) / 17
LCM(81787,81804) = 6690503748 / 17
LCM(81787,81804) = 393559044

Least Common Multiple (LCM) of 81787 and 81804 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81787 and 81804. First we will calculate the prime factors of 81787 and 81804.

Prime Factorization of 81787

Prime Factorization of 81804

Now multiplying the highest exponent prime factors to calculate the LCM of 81787 and 81804.

LCM(81787,81804) = 17² × 283¹ × 2² × 3¹ × 401¹
LCM(81787,81804) = 393559044