What is the Least Common Multiple of 42672 and 42681?

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 42672 and 42681 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42672 and 42681, than apply into the LCM equation.

GCF(42672,42681) = 3
LCM(42672,42681) = ( 42672 × 42681) / 3
LCM(42672,42681) = 1821283632 / 3
LCM(42672,42681) = 607094544

Least Common Multiple (LCM) of 42672 and 42681 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42672 and 42681. First we will calculate the prime factors of 42672 and 42681.

Prime Factorization of 42672

Prime Factorization of 42681

Now multiplying the highest exponent prime factors to calculate the LCM of 42672 and 42681.

LCM(42672,42681) = 2⁴ × 3¹ × 7¹ × 127¹ × 41¹ × 347¹
LCM(42672,42681) = 607094544