What is the Least Common Multiple of 42038 and 42042?

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 42038 and 42042 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42038 and 42042, than apply into the LCM equation.

GCF(42038,42042) = 2
LCM(42038,42042) = ( 42038 × 42042) / 2
LCM(42038,42042) = 1767361596 / 2
LCM(42038,42042) = 883680798

Least Common Multiple (LCM) of 42038 and 42042 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42038 and 42042. First we will calculate the prime factors of 42038 and 42042.

Prime Factorization of 42038

Prime Factorization of 42042

Now multiplying the highest exponent prime factors to calculate the LCM of 42038 and 42042.

LCM(42038,42042) = 2¹ × 21019¹ × 3¹ × 7² × 11¹ × 13¹
LCM(42038,42042) = 883680798