What is the Least Common Multiple of 81503 and 81507?

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 81503 and 81507 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81503 and 81507, than apply into the LCM equation.

GCF(81503,81507) = 1
LCM(81503,81507) = ( 81503 × 81507) / 1
LCM(81503,81507) = 6643065021 / 1
LCM(81503,81507) = 6643065021

Least Common Multiple (LCM) of 81503 and 81507 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81503 and 81507. First we will calculate the prime factors of 81503 and 81507.

Prime Factorization of 81503

Prime Factorization of 81507

Now multiplying the highest exponent prime factors to calculate the LCM of 81503 and 81507.

LCM(81503,81507) = 149¹ × 547¹ × 3¹ × 101¹ × 269¹
LCM(81503,81507) = 6643065021