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What is the Least Common Multiple of 87761 and 87765?

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 87761 and 87765 is 7702344165.

LCM(87761,87765) = 7702344165

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Least Common Multiple of 87761 and 87765 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 87761 and 87765, than apply into the LCM equation.

GCF(87761,87765) = 1
LCM(87761,87765) = ( 87761 × 87765) / 1
LCM(87761,87765) = 7702344165 / 1
LCM(87761,87765) = 7702344165

Least Common Multiple (LCM) of 87761 and 87765 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 87761 and 87765. First we will calculate the prime factors of 87761 and 87765.

Prime Factorization of 87761

Prime factors of 87761 are 19, 31, 149. Prime factorization of 87761 in exponential form is:

87761 = 191 × 311 × 1491

Prime Factorization of 87765

Prime factors of 87765 are 3, 5, 5851. Prime factorization of 87765 in exponential form is:

87765 = 31 × 51 × 58511

Now multiplying the highest exponent prime factors to calculate the LCM of 87761 and 87765.

LCM(87761,87765) = 191 × 311 × 1491 × 31 × 51 × 58511
LCM(87761,87765) = 7702344165