What is the Least Common Multiple of 67998 and 68018?

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 67998 and 68018 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 67998 and 68018, than apply into the LCM equation.

GCF(67998,68018) = 2
LCM(67998,68018) = ( 67998 × 68018) / 2
LCM(67998,68018) = 4625087964 / 2
LCM(67998,68018) = 2312543982

Least Common Multiple (LCM) of 67998 and 68018 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 67998 and 68018. First we will calculate the prime factors of 67998 and 68018.

Prime Factorization of 67998

Prime Factorization of 68018

Now multiplying the highest exponent prime factors to calculate the LCM of 67998 and 68018.

LCM(67998,68018) = 2¹ × 3¹ × 7¹ × 1619¹ × 71¹ × 479¹
LCM(67998,68018) = 2312543982