What is the Least Common Multiple of 28438 and 28454?

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 28438 and 28454 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28438 and 28454, than apply into the LCM equation.

GCF(28438,28454) = 2
LCM(28438,28454) = ( 28438 × 28454) / 2
LCM(28438,28454) = 809174852 / 2
LCM(28438,28454) = 404587426

Least Common Multiple (LCM) of 28438 and 28454 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28438 and 28454. First we will calculate the prime factors of 28438 and 28454.

Prime Factorization of 28438

Prime Factorization of 28454

Now multiplying the highest exponent prime factors to calculate the LCM of 28438 and 28454.

LCM(28438,28454) = 2¹ × 59¹ × 241¹ × 41¹ × 347¹
LCM(28438,28454) = 404587426