What is the Least Common Multiple of 42320 and 42325?

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 42320 and 42325 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42320 and 42325, than apply into the LCM equation.

GCF(42320,42325) = 5
LCM(42320,42325) = ( 42320 × 42325) / 5
LCM(42320,42325) = 1791194000 / 5
LCM(42320,42325) = 358238800

Least Common Multiple (LCM) of 42320 and 42325 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42320 and 42325. First we will calculate the prime factors of 42320 and 42325.

Prime Factorization of 42320

Prime Factorization of 42325

Now multiplying the highest exponent prime factors to calculate the LCM of 42320 and 42325.

LCM(42320,42325) = 2⁴ × 5² × 23² × 1693¹
LCM(42320,42325) = 358238800