What is the Least Common Multiple of 10491 and 10509?

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 10491 and 10509 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 10491 and 10509, than apply into the LCM equation.

GCF(10491,10509) = 3
LCM(10491,10509) = ( 10491 × 10509) / 3
LCM(10491,10509) = 110249919 / 3
LCM(10491,10509) = 36749973

Least Common Multiple (LCM) of 10491 and 10509 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 10491 and 10509. First we will calculate the prime factors of 10491 and 10509.

Prime Factorization of 10491

Prime Factorization of 10509

Now multiplying the highest exponent prime factors to calculate the LCM of 10491 and 10509.

LCM(10491,10509) = 3¹ × 13¹ × 269¹ × 31¹ × 113¹
LCM(10491,10509) = 36749973