What is the Least Common Multiple of 63400 and 63405?

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 63400 and 63405 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 63400 and 63405, than apply into the LCM equation.

GCF(63400,63405) = 5
LCM(63400,63405) = ( 63400 × 63405) / 5
LCM(63400,63405) = 4019877000 / 5
LCM(63400,63405) = 803975400

Least Common Multiple (LCM) of 63400 and 63405 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 63400 and 63405. First we will calculate the prime factors of 63400 and 63405.

Prime Factorization of 63400

Prime Factorization of 63405

Now multiplying the highest exponent prime factors to calculate the LCM of 63400 and 63405.

LCM(63400,63405) = 2³ × 5² × 317¹ × 3² × 1409¹
LCM(63400,63405) = 803975400