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What is the Least Common Multiple of 82161 and 82180?

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 82161 and 82180 is 6751990980.

LCM(82161,82180) = 6751990980

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Least Common Multiple of 82161 and 82180 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 82161 and 82180, than apply into the LCM equation.

GCF(82161,82180) = 1
LCM(82161,82180) = ( 82161 × 82180) / 1
LCM(82161,82180) = 6751990980 / 1
LCM(82161,82180) = 6751990980

Least Common Multiple (LCM) of 82161 and 82180 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 82161 and 82180. First we will calculate the prime factors of 82161 and 82180.

Prime Factorization of 82161

Prime factors of 82161 are 3, 17, 179. Prime factorization of 82161 in exponential form is:

82161 = 33 × 171 × 1791

Prime Factorization of 82180

Prime factors of 82180 are 2, 5, 7, 587. Prime factorization of 82180 in exponential form is:

82180 = 22 × 51 × 71 × 5871

Now multiplying the highest exponent prime factors to calculate the LCM of 82161 and 82180.

LCM(82161,82180) = 33 × 171 × 1791 × 22 × 51 × 71 × 5871
LCM(82161,82180) = 6751990980