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What is the Least Common Multiple of 2505 and 2515?

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 2505 and 2515 is 1260015.

LCM(2505,2515) = 1260015

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Least Common Multiple of 2505 and 2515 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2505 and 2515, than apply into the LCM equation.

GCF(2505,2515) = 5
LCM(2505,2515) = ( 2505 × 2515) / 5
LCM(2505,2515) = 6300075 / 5
LCM(2505,2515) = 1260015

Least Common Multiple (LCM) of 2505 and 2515 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 2505 and 2515. First we will calculate the prime factors of 2505 and 2515.

Prime Factorization of 2505

Prime factors of 2505 are 3, 5, 167. Prime factorization of 2505 in exponential form is:

2505 = 31 × 51 × 1671

Prime Factorization of 2515

Prime factors of 2515 are 5, 503. Prime factorization of 2515 in exponential form is:

2515 = 51 × 5031

Now multiplying the highest exponent prime factors to calculate the LCM of 2505 and 2515.

LCM(2505,2515) = 31 × 51 × 1671 × 5031
LCM(2505,2515) = 1260015