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What is the Least Common Multiple of 87489 and 87505?

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 87489 and 87505 is 7655724945.

LCM(87489,87505) = 7655724945

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Least Common Multiple of 87489 and 87505 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 87489 and 87505, than apply into the LCM equation.

GCF(87489,87505) = 1
LCM(87489,87505) = ( 87489 × 87505) / 1
LCM(87489,87505) = 7655724945 / 1
LCM(87489,87505) = 7655724945

Least Common Multiple (LCM) of 87489 and 87505 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 87489 and 87505. First we will calculate the prime factors of 87489 and 87505.

Prime Factorization of 87489

Prime factors of 87489 are 3, 9721. Prime factorization of 87489 in exponential form is:

87489 = 32 × 97211

Prime Factorization of 87505

Prime factors of 87505 are 5, 11, 37, 43. Prime factorization of 87505 in exponential form is:

87505 = 51 × 111 × 371 × 431

Now multiplying the highest exponent prime factors to calculate the LCM of 87489 and 87505.

LCM(87489,87505) = 32 × 97211 × 51 × 111 × 371 × 431
LCM(87489,87505) = 7655724945