What is the Least Common Multiple of 81558 and 81566?

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 81558 and 81566 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81558 and 81566, than apply into the LCM equation.

GCF(81558,81566) = 2
LCM(81558,81566) = ( 81558 × 81566) / 2
LCM(81558,81566) = 6652359828 / 2
LCM(81558,81566) = 3326179914

Least Common Multiple (LCM) of 81558 and 81566 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81558 and 81566. First we will calculate the prime factors of 81558 and 81566.

Prime Factorization of 81558

Prime Factorization of 81566

Now multiplying the highest exponent prime factors to calculate the LCM of 81558 and 81566.

LCM(81558,81566) = 2¹ × 3² × 23¹ × 197¹ × 17¹ × 2399¹
LCM(81558,81566) = 3326179914