What is the Least Common Multiple of 34420 and 34438?

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 34420 and 34438 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 34420 and 34438, than apply into the LCM equation.

GCF(34420,34438) = 2
LCM(34420,34438) = ( 34420 × 34438) / 2
LCM(34420,34438) = 1185355960 / 2
LCM(34420,34438) = 592677980

Least Common Multiple (LCM) of 34420 and 34438 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 34420 and 34438. First we will calculate the prime factors of 34420 and 34438.

Prime Factorization of 34420

Prime Factorization of 34438

Now multiplying the highest exponent prime factors to calculate the LCM of 34420 and 34438.

LCM(34420,34438) = 2² × 5¹ × 1721¹ × 67¹ × 257¹
LCM(34420,34438) = 592677980