What is the Least Common Multiple of 27921 and 27930?

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 27921 and 27930 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 27921 and 27930, than apply into the LCM equation.

GCF(27921,27930) = 3
LCM(27921,27930) = ( 27921 × 27930) / 3
LCM(27921,27930) = 779833530 / 3
LCM(27921,27930) = 259944510

Least Common Multiple (LCM) of 27921 and 27930 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 27921 and 27930. First we will calculate the prime factors of 27921 and 27930.

Prime Factorization of 27921

Prime Factorization of 27930

Now multiplying the highest exponent prime factors to calculate the LCM of 27921 and 27930.

LCM(27921,27930) = 3¹ × 41¹ × 227¹ × 2¹ × 5¹ × 7² × 19¹
LCM(27921,27930) = 259944510