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What is the Least Common Multiple of 81897 and 81902?

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 81897 and 81902 is 6707528094.

LCM(81897,81902) = 6707528094

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Least Common Multiple of 81897 and 81902 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81897 and 81902, than apply into the LCM equation.

GCF(81897,81902) = 1
LCM(81897,81902) = ( 81897 × 81902) / 1
LCM(81897,81902) = 6707528094 / 1
LCM(81897,81902) = 6707528094

Least Common Multiple (LCM) of 81897 and 81902 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81897 and 81902. First we will calculate the prime factors of 81897 and 81902.

Prime Factorization of 81897

Prime factors of 81897 are 3, 27299. Prime factorization of 81897 in exponential form is:

81897 = 31 × 272991

Prime Factorization of 81902

Prime factors of 81902 are 2, 31, 1321. Prime factorization of 81902 in exponential form is:

81902 = 21 × 311 × 13211

Now multiplying the highest exponent prime factors to calculate the LCM of 81897 and 81902.

LCM(81897,81902) = 31 × 272991 × 21 × 311 × 13211
LCM(81897,81902) = 6707528094