GCF and LCM Calculator Logo

What is the Least Common Multiple of 6397 and 6403?

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 (LCM) of 6397 and 6403 is 40959991.

LCM(6397,6403) = 40959991

LCM Calculator and
and

Least Common Multiple of 6397 and 6403 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 6397 and 6403, than apply into the LCM equation.

GCF(6397,6403) = 1
LCM(6397,6403) = ( 6397 × 6403) / 1
LCM(6397,6403) = 40959991 / 1
LCM(6397,6403) = 40959991

Least Common Multiple (LCM) of 6397 and 6403 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 6397 and 6403. First we will calculate the prime factors of 6397 and 6403.

Prime Factorization of 6397

Prime factors of 6397 are 6397. Prime factorization of 6397 in exponential form is:

6397 = 63971

Prime Factorization of 6403

Prime factors of 6403 are 19, 337. Prime factorization of 6403 in exponential form is:

6403 = 191 × 3371

Now multiplying the highest exponent prime factors to calculate the LCM of 6397 and 6403.

LCM(6397,6403) = 63971 × 191 × 3371
LCM(6397,6403) = 40959991