What is the Least Common Multiple of 42998 and 43018?

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 42998 and 43018 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42998 and 43018, than apply into the LCM equation.

GCF(42998,43018) = 2
LCM(42998,43018) = ( 42998 × 43018) / 2
LCM(42998,43018) = 1849687964 / 2
LCM(42998,43018) = 924843982

Least Common Multiple (LCM) of 42998 and 43018 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42998 and 43018. First we will calculate the prime factors of 42998 and 43018.

Prime Factorization of 42998

Prime Factorization of 43018

Now multiplying the highest exponent prime factors to calculate the LCM of 42998 and 43018.

LCM(42998,43018) = 2¹ × 21499¹ × 137¹ × 157¹
LCM(42998,43018) = 924843982