What is the Least Common Multiple of 4040 and 4055?

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 4040 and 4055 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 4040 and 4055, than apply into the LCM equation.

GCF(4040,4055) = 5
LCM(4040,4055) = ( 4040 × 4055) / 5
LCM(4040,4055) = 16382200 / 5
LCM(4040,4055) = 3276440

Least Common Multiple (LCM) of 4040 and 4055 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 4040 and 4055. First we will calculate the prime factors of 4040 and 4055.

Prime Factorization of 4040

Prime Factorization of 4055

Now multiplying the highest exponent prime factors to calculate the LCM of 4040 and 4055.

LCM(4040,4055) = 2³ × 5¹ × 101¹ × 811¹
LCM(4040,4055) = 3276440