What is the Least Common Multiple of 11561 and 11569?

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 11561 and 11569 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 11561 and 11569, than apply into the LCM equation.

GCF(11561,11569) = 1
LCM(11561,11569) = ( 11561 × 11569) / 1
LCM(11561,11569) = 133749209 / 1
LCM(11561,11569) = 133749209

Least Common Multiple (LCM) of 11561 and 11569 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 11561 and 11569. First we will calculate the prime factors of 11561 and 11569.

Prime Factorization of 11561

Prime Factorization of 11569

Now multiplying the highest exponent prime factors to calculate the LCM of 11561 and 11569.

LCM(11561,11569) = 11¹ × 1051¹ × 23¹ × 503¹
LCM(11561,11569) = 133749209