What is the Least Common Multiple of 27972 and 27981?

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 27972 and 27981 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 27972 and 27981, than apply into the LCM equation.

GCF(27972,27981) = 9
LCM(27972,27981) = ( 27972 × 27981) / 9
LCM(27972,27981) = 782684532 / 9
LCM(27972,27981) = 86964948

Least Common Multiple (LCM) of 27972 and 27981 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 27972 and 27981. First we will calculate the prime factors of 27972 and 27981.

Prime Factorization of 27972

Prime Factorization of 27981

Now multiplying the highest exponent prime factors to calculate the LCM of 27972 and 27981.

LCM(27972,27981) = 2² × 3³ × 7¹ × 37¹ × 3109¹
LCM(27972,27981) = 86964948