What is the Least Common Multiple of 31678 and 31688?

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 31678 and 31688 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31678 and 31688, than apply into the LCM equation.

GCF(31678,31688) = 2
LCM(31678,31688) = ( 31678 × 31688) / 2
LCM(31678,31688) = 1003812464 / 2
LCM(31678,31688) = 501906232

Least Common Multiple (LCM) of 31678 and 31688 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31678 and 31688. First we will calculate the prime factors of 31678 and 31688.

Prime Factorization of 31678

Prime Factorization of 31688

Now multiplying the highest exponent prime factors to calculate the LCM of 31678 and 31688.

LCM(31678,31688) = 2³ × 47¹ × 337¹ × 17¹ × 233¹
LCM(31678,31688) = 501906232