What is the Least Common Multiple of 81653 and 81673?

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 81653 and 81673 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81653 and 81673, than apply into the LCM equation.

GCF(81653,81673) = 1
LCM(81653,81673) = ( 81653 × 81673) / 1
LCM(81653,81673) = 6668845469 / 1
LCM(81653,81673) = 6668845469

Least Common Multiple (LCM) of 81653 and 81673 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81653 and 81673. First we will calculate the prime factors of 81653 and 81673.

Prime Factorization of 81653

Prime Factorization of 81673

Now multiplying the highest exponent prime factors to calculate the LCM of 81653 and 81673.

LCM(81653,81673) = 11¹ × 13¹ × 571¹ × 23¹ × 53¹ × 67¹
LCM(81653,81673) = 6668845469