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What is the Least Common Multiple of 13505 and 13515?

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 (LCM) of 13505 and 13515 is 36504015.

LCM(13505,13515) = 36504015

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Least Common Multiple of 13505 and 13515 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 13505 and 13515, than apply into the LCM equation.

GCF(13505,13515) = 5
LCM(13505,13515) = ( 13505 × 13515) / 5
LCM(13505,13515) = 182520075 / 5
LCM(13505,13515) = 36504015

Least Common Multiple (LCM) of 13505 and 13515 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 13505 and 13515. First we will calculate the prime factors of 13505 and 13515.

Prime Factorization of 13505

Prime factors of 13505 are 5, 37, 73. Prime factorization of 13505 in exponential form is:

13505 = 51 × 371 × 731

Prime Factorization of 13515

Prime factors of 13515 are 3, 5, 17, 53. Prime factorization of 13515 in exponential form is:

13515 = 31 × 51 × 171 × 531

Now multiplying the highest exponent prime factors to calculate the LCM of 13505 and 13515.

LCM(13505,13515) = 51 × 371 × 731 × 31 × 171 × 531
LCM(13505,13515) = 36504015