What is the Least Common Multiple of 42403 and 42412?

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 42403 and 42412 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42403 and 42412, than apply into the LCM equation.

GCF(42403,42412) = 1
LCM(42403,42412) = ( 42403 × 42412) / 1
LCM(42403,42412) = 1798396036 / 1
LCM(42403,42412) = 1798396036

Least Common Multiple (LCM) of 42403 and 42412 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42403 and 42412. First we will calculate the prime factors of 42403 and 42412.

Prime Factorization of 42403

Prime Factorization of 42412

Now multiplying the highest exponent prime factors to calculate the LCM of 42403 and 42412.

LCM(42403,42412) = 42403¹ × 2² × 23¹ × 461¹
LCM(42403,42412) = 1798396036