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What is the Least Common Multiple of 87172 and 87185?

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 87172 and 87185 is 7600090820.

LCM(87172,87185) = 7600090820

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Least Common Multiple of 87172 and 87185 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 87172 and 87185, than apply into the LCM equation.

GCF(87172,87185) = 1
LCM(87172,87185) = ( 87172 × 87185) / 1
LCM(87172,87185) = 7600090820 / 1
LCM(87172,87185) = 7600090820

Least Common Multiple (LCM) of 87172 and 87185 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 87172 and 87185. First we will calculate the prime factors of 87172 and 87185.

Prime Factorization of 87172

Prime factors of 87172 are 2, 19, 31, 37. Prime factorization of 87172 in exponential form is:

87172 = 22 × 191 × 311 × 371

Prime Factorization of 87185

Prime factors of 87185 are 5, 7, 47, 53. Prime factorization of 87185 in exponential form is:

87185 = 51 × 71 × 471 × 531

Now multiplying the highest exponent prime factors to calculate the LCM of 87172 and 87185.

LCM(87172,87185) = 22 × 191 × 311 × 371 × 51 × 71 × 471 × 531
LCM(87172,87185) = 7600090820