What is the Least Common Multiple of 42136 and 42145?

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 42136 and 42145 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42136 and 42145, than apply into the LCM equation.

GCF(42136,42145) = 1
LCM(42136,42145) = ( 42136 × 42145) / 1
LCM(42136,42145) = 1775821720 / 1
LCM(42136,42145) = 1775821720

Least Common Multiple (LCM) of 42136 and 42145 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42136 and 42145. First we will calculate the prime factors of 42136 and 42145.

Prime Factorization of 42136

Prime Factorization of 42145

Now multiplying the highest exponent prime factors to calculate the LCM of 42136 and 42145.

LCM(42136,42145) = 2³ × 23¹ × 229¹ × 5¹ × 8429¹
LCM(42136,42145) = 1775821720