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What is the Least Common Multiple of 81795 and 81804?

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 81795 and 81804 is 2230386060.

LCM(81795,81804) = 2230386060

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Least Common Multiple of 81795 and 81804 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81795 and 81804, than apply into the LCM equation.

GCF(81795,81804) = 3
LCM(81795,81804) = ( 81795 × 81804) / 3
LCM(81795,81804) = 6691158180 / 3
LCM(81795,81804) = 2230386060

Least Common Multiple (LCM) of 81795 and 81804 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81795 and 81804. First we will calculate the prime factors of 81795 and 81804.

Prime Factorization of 81795

Prime factors of 81795 are 3, 5, 7, 19, 41. Prime factorization of 81795 in exponential form is:

81795 = 31 × 51 × 71 × 191 × 411

Prime Factorization of 81804

Prime factors of 81804 are 2, 3, 17, 401. Prime factorization of 81804 in exponential form is:

81804 = 22 × 31 × 171 × 4011

Now multiplying the highest exponent prime factors to calculate the LCM of 81795 and 81804.

LCM(81795,81804) = 31 × 51 × 71 × 191 × 411 × 22 × 171 × 4011
LCM(81795,81804) = 2230386060