What is the Least Common Multiple of 31451 and 31471?

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 31451 and 31471 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31451 and 31471, than apply into the LCM equation.

GCF(31451,31471) = 1
LCM(31451,31471) = ( 31451 × 31471) / 1
LCM(31451,31471) = 989794421 / 1
LCM(31451,31471) = 989794421

Least Common Multiple (LCM) of 31451 and 31471 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31451 and 31471. First we will calculate the prime factors of 31451 and 31471.

Prime Factorization of 31451

Prime Factorization of 31471

Now multiplying the highest exponent prime factors to calculate the LCM of 31451 and 31471.

LCM(31451,31471) = 7¹ × 4493¹ × 11¹ × 2861¹
LCM(31451,31471) = 989794421