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What is the Least Common Multiple of 90671 and 90681?

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 90671 and 90681 is 8222136951.

LCM(90671,90681) = 8222136951

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Least Common Multiple of 90671 and 90681 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 90671 and 90681, than apply into the LCM equation.

GCF(90671,90681) = 1
LCM(90671,90681) = ( 90671 × 90681) / 1
LCM(90671,90681) = 8222136951 / 1
LCM(90671,90681) = 8222136951

Least Common Multiple (LCM) of 90671 and 90681 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 90671 and 90681. First we will calculate the prime factors of 90671 and 90681.

Prime Factorization of 90671

Prime factors of 90671 are 7, 12953. Prime factorization of 90671 in exponential form is:

90671 = 71 × 129531

Prime Factorization of 90681

Prime factors of 90681 are 3, 167, 181. Prime factorization of 90681 in exponential form is:

90681 = 31 × 1671 × 1811

Now multiplying the highest exponent prime factors to calculate the LCM of 90671 and 90681.

LCM(90671,90681) = 71 × 129531 × 31 × 1671 × 1811
LCM(90671,90681) = 8222136951