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What is the Least Common Multiple of 15285 and 15305?

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 15285 and 15305 is 46787385.

LCM(15285,15305) = 46787385

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Least Common Multiple of 15285 and 15305 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15285 and 15305, than apply into the LCM equation.

GCF(15285,15305) = 5
LCM(15285,15305) = ( 15285 × 15305) / 5
LCM(15285,15305) = 233936925 / 5
LCM(15285,15305) = 46787385

Least Common Multiple (LCM) of 15285 and 15305 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15285 and 15305. First we will calculate the prime factors of 15285 and 15305.

Prime Factorization of 15285

Prime factors of 15285 are 3, 5, 1019. Prime factorization of 15285 in exponential form is:

15285 = 31 × 51 × 10191

Prime Factorization of 15305

Prime factors of 15305 are 5, 3061. Prime factorization of 15305 in exponential form is:

15305 = 51 × 30611

Now multiplying the highest exponent prime factors to calculate the LCM of 15285 and 15305.

LCM(15285,15305) = 31 × 51 × 10191 × 30611
LCM(15285,15305) = 46787385