What is the Least Common Multiple of 64990 and 65005?

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 64990 and 65005 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 64990 and 65005, than apply into the LCM equation.

GCF(64990,65005) = 5
LCM(64990,65005) = ( 64990 × 65005) / 5
LCM(64990,65005) = 4224674950 / 5
LCM(64990,65005) = 844934990

Least Common Multiple (LCM) of 64990 and 65005 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 64990 and 65005. First we will calculate the prime factors of 64990 and 65005.

Prime Factorization of 64990

Prime Factorization of 65005

Now multiplying the highest exponent prime factors to calculate the LCM of 64990 and 65005.

LCM(64990,65005) = 2¹ × 5¹ × 67¹ × 97¹ × 13001¹
LCM(64990,65005) = 844934990