What is the Least Common Multiple of 51471 and 51490?

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 51471 and 51490 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 51471 and 51490, than apply into the LCM equation.

GCF(51471,51490) = 19
LCM(51471,51490) = ( 51471 × 51490) / 19
LCM(51471,51490) = 2650241790 / 19
LCM(51471,51490) = 139486410

Least Common Multiple (LCM) of 51471 and 51490 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 51471 and 51490. First we will calculate the prime factors of 51471 and 51490.

Prime Factorization of 51471

Prime Factorization of 51490

Now multiplying the highest exponent prime factors to calculate the LCM of 51471 and 51490.

LCM(51471,51490) = 3² × 7¹ × 19¹ × 43¹ × 2¹ × 5¹ × 271¹
LCM(51471,51490) = 139486410