What is the Least Common Multiple of 74990 and 75005?

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 74990 and 75005 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 74990 and 75005, than apply into the LCM equation.

GCF(74990,75005) = 5
LCM(74990,75005) = ( 74990 × 75005) / 5
LCM(74990,75005) = 5624624950 / 5
LCM(74990,75005) = 1124924990

Least Common Multiple (LCM) of 74990 and 75005 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 74990 and 75005. First we will calculate the prime factors of 74990 and 75005.

Prime Factorization of 74990

Prime Factorization of 75005

Now multiplying the highest exponent prime factors to calculate the LCM of 74990 and 75005.

LCM(74990,75005) = 2¹ × 5¹ × 7499¹ × 7¹ × 2143¹
LCM(74990,75005) = 1124924990