What is the Least Common Multiple of 6470 and 6488?

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 6470 and 6488 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 6470 and 6488, than apply into the LCM equation.

GCF(6470,6488) = 2
LCM(6470,6488) = ( 6470 × 6488) / 2
LCM(6470,6488) = 41977360 / 2
LCM(6470,6488) = 20988680

Least Common Multiple (LCM) of 6470 and 6488 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 6470 and 6488. First we will calculate the prime factors of 6470 and 6488.

Prime Factorization of 6470

Prime Factorization of 6488

Now multiplying the highest exponent prime factors to calculate the LCM of 6470 and 6488.

LCM(6470,6488) = 2³ × 5¹ × 647¹ × 811¹
LCM(6470,6488) = 20988680