What is the Least Common Multiple of 1497 and 1515?

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 1497 and 1515 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1497 and 1515, than apply into the LCM equation.

GCF(1497,1515) = 3
LCM(1497,1515) = ( 1497 × 1515) / 3
LCM(1497,1515) = 2267955 / 3
LCM(1497,1515) = 755985

Least Common Multiple (LCM) of 1497 and 1515 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 1497 and 1515. First we will calculate the prime factors of 1497 and 1515.

Prime Factorization of 1497

Prime Factorization of 1515

Now multiplying the highest exponent prime factors to calculate the LCM of 1497 and 1515.

LCM(1497,1515) = 3¹ × 499¹ × 5¹ × 101¹
LCM(1497,1515) = 755985