What is the Least Common Multiple of 31240 and 31247?

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 31240 and 31247 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31240 and 31247, than apply into the LCM equation.

GCF(31240,31247) = 1
LCM(31240,31247) = ( 31240 × 31247) / 1
LCM(31240,31247) = 976156280 / 1
LCM(31240,31247) = 976156280

Least Common Multiple (LCM) of 31240 and 31247 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31240 and 31247. First we will calculate the prime factors of 31240 and 31247.

Prime Factorization of 31240

Prime Factorization of 31247

Now multiplying the highest exponent prime factors to calculate the LCM of 31240 and 31247.

LCM(31240,31247) = 2³ × 5¹ × 11¹ × 71¹ × 31247¹
LCM(31240,31247) = 976156280