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What is the Least Common Multiple of 87397 and 87405?

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 87397 and 87405 is 7638934785.

LCM(87397,87405) = 7638934785

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Least Common Multiple of 87397 and 87405 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 87397 and 87405, than apply into the LCM equation.

GCF(87397,87405) = 1
LCM(87397,87405) = ( 87397 × 87405) / 1
LCM(87397,87405) = 7638934785 / 1
LCM(87397,87405) = 7638934785

Least Common Multiple (LCM) of 87397 and 87405 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 87397 and 87405. First we will calculate the prime factors of 87397 and 87405.

Prime Factorization of 87397

Prime factors of 87397 are 17, 53, 97. Prime factorization of 87397 in exponential form is:

87397 = 171 × 531 × 971

Prime Factorization of 87405

Prime factors of 87405 are 3, 5, 5827. Prime factorization of 87405 in exponential form is:

87405 = 31 × 51 × 58271

Now multiplying the highest exponent prime factors to calculate the LCM of 87397 and 87405.

LCM(87397,87405) = 171 × 531 × 971 × 31 × 51 × 58271
LCM(87397,87405) = 7638934785