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What is the Least Common Multiple of 87711 and 87731?

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 87711 and 87731 is 7694973741.

LCM(87711,87731) = 7694973741

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Least Common Multiple of 87711 and 87731 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 87711 and 87731, than apply into the LCM equation.

GCF(87711,87731) = 1
LCM(87711,87731) = ( 87711 × 87731) / 1
LCM(87711,87731) = 7694973741 / 1
LCM(87711,87731) = 7694973741

Least Common Multiple (LCM) of 87711 and 87731 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 87711 and 87731. First we will calculate the prime factors of 87711 and 87731.

Prime Factorization of 87711

Prime factors of 87711 are 3, 13, 173. Prime factorization of 87711 in exponential form is:

87711 = 31 × 132 × 1731

Prime Factorization of 87731

Prime factors of 87731 are 7, 83, 151. Prime factorization of 87731 in exponential form is:

87731 = 71 × 831 × 1511

Now multiplying the highest exponent prime factors to calculate the LCM of 87711 and 87731.

LCM(87711,87731) = 31 × 132 × 1731 × 71 × 831 × 1511
LCM(87711,87731) = 7694973741