What is the Least Common Multiple of 31898 and 31918?

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 31898 and 31918 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31898 and 31918, than apply into the LCM equation.

GCF(31898,31918) = 2
LCM(31898,31918) = ( 31898 × 31918) / 2
LCM(31898,31918) = 1018120364 / 2
LCM(31898,31918) = 509060182

Least Common Multiple (LCM) of 31898 and 31918 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31898 and 31918. First we will calculate the prime factors of 31898 and 31918.

Prime Factorization of 31898

Prime Factorization of 31918

Now multiplying the highest exponent prime factors to calculate the LCM of 31898 and 31918.

LCM(31898,31918) = 2¹ × 41¹ × 389¹ × 15959¹
LCM(31898,31918) = 509060182