What is the Least Common Multiple of 81636 and 81644?

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 81636 and 81644 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81636 and 81644, than apply into the LCM equation.

GCF(81636,81644) = 4
LCM(81636,81644) = ( 81636 × 81644) / 4
LCM(81636,81644) = 6665089584 / 4
LCM(81636,81644) = 1666272396

Least Common Multiple (LCM) of 81636 and 81644 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81636 and 81644. First we will calculate the prime factors of 81636 and 81644.

Prime Factorization of 81636

Prime Factorization of 81644

Now multiplying the highest exponent prime factors to calculate the LCM of 81636 and 81644.

LCM(81636,81644) = 2² × 3¹ × 6803¹ × 20411¹
LCM(81636,81644) = 1666272396