What is the Least Common Multiple of 4581 and 4585?

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 4581 and 4585 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 4581 and 4585, than apply into the LCM equation.

GCF(4581,4585) = 1
LCM(4581,4585) = ( 4581 × 4585) / 1
LCM(4581,4585) = 21003885 / 1
LCM(4581,4585) = 21003885

Least Common Multiple (LCM) of 4581 and 4585 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 4581 and 4585. First we will calculate the prime factors of 4581 and 4585.

Prime Factorization of 4581

Prime Factorization of 4585

Now multiplying the highest exponent prime factors to calculate the LCM of 4581 and 4585.

LCM(4581,4585) = 3² × 509¹ × 5¹ × 7¹ × 131¹
LCM(4581,4585) = 21003885