What is the Least Common Multiple of 4090 and 4109?

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 4090 and 4109 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 4090 and 4109, than apply into the LCM equation.

GCF(4090,4109) = 1
LCM(4090,4109) = ( 4090 × 4109) / 1
LCM(4090,4109) = 16805810 / 1
LCM(4090,4109) = 16805810

Least Common Multiple (LCM) of 4090 and 4109 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 4090 and 4109. First we will calculate the prime factors of 4090 and 4109.

Prime Factorization of 4090

Prime Factorization of 4109

Now multiplying the highest exponent prime factors to calculate the LCM of 4090 and 4109.

LCM(4090,4109) = 2¹ × 5¹ × 409¹ × 7¹ × 587¹
LCM(4090,4109) = 16805810