What is the Least Common Multiple of 21836 and 21843?

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 21836 and 21843 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 21836 and 21843, than apply into the LCM equation.

GCF(21836,21843) = 1
LCM(21836,21843) = ( 21836 × 21843) / 1
LCM(21836,21843) = 476963748 / 1
LCM(21836,21843) = 476963748

Least Common Multiple (LCM) of 21836 and 21843 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 21836 and 21843. First we will calculate the prime factors of 21836 and 21843.

Prime Factorization of 21836

Prime Factorization of 21843

Now multiplying the highest exponent prime factors to calculate the LCM of 21836 and 21843.

LCM(21836,21843) = 2² × 53¹ × 103¹ × 3³ × 809¹
LCM(21836,21843) = 476963748