What is the Least Common Multiple of 53991 and 53997?

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 53991 and 53997 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 53991 and 53997, than apply into the LCM equation.

GCF(53991,53997) = 3
LCM(53991,53997) = ( 53991 × 53997) / 3
LCM(53991,53997) = 2915352027 / 3
LCM(53991,53997) = 971784009

Least Common Multiple (LCM) of 53991 and 53997 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 53991 and 53997. First we will calculate the prime factors of 53991 and 53997.

Prime Factorization of 53991

Prime Factorization of 53997

Now multiplying the highest exponent prime factors to calculate the LCM of 53991 and 53997.

LCM(53991,53997) = 3² × 7¹ × 857¹ × 41¹ × 439¹
LCM(53991,53997) = 971784009