What is the Least Common Multiple of 42558 and 42574?

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 42558 and 42574 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42558 and 42574, than apply into the LCM equation.

GCF(42558,42574) = 2
LCM(42558,42574) = ( 42558 × 42574) / 2
LCM(42558,42574) = 1811864292 / 2
LCM(42558,42574) = 905932146

Least Common Multiple (LCM) of 42558 and 42574 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42558 and 42574. First we will calculate the prime factors of 42558 and 42574.

Prime Factorization of 42558

Prime Factorization of 42574

Now multiplying the highest exponent prime factors to calculate the LCM of 42558 and 42574.

LCM(42558,42574) = 2¹ × 3¹ × 41¹ × 173¹ × 7¹ × 3041¹
LCM(42558,42574) = 905932146