What is the Least Common Multiple of 69543 and 69561?

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 69543 and 69561 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 69543 and 69561, than apply into the LCM equation.

GCF(69543,69561) = 9
LCM(69543,69561) = ( 69543 × 69561) / 9
LCM(69543,69561) = 4837480623 / 9
LCM(69543,69561) = 537497847

Least Common Multiple (LCM) of 69543 and 69561 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 69543 and 69561. First we will calculate the prime factors of 69543 and 69561.

Prime Factorization of 69543

Prime Factorization of 69561

Now multiplying the highest exponent prime factors to calculate the LCM of 69543 and 69561.

LCM(69543,69561) = 3² × 7727¹ × 59¹ × 131¹
LCM(69543,69561) = 537497847