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What is the Least Common Multiple of 82978 and 82986?

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 82978 and 82986 is 3443006154.

LCM(82978,82986) = 3443006154

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Least Common Multiple of 82978 and 82986 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 82978 and 82986, than apply into the LCM equation.

GCF(82978,82986) = 2
LCM(82978,82986) = ( 82978 × 82986) / 2
LCM(82978,82986) = 6886012308 / 2
LCM(82978,82986) = 3443006154

Least Common Multiple (LCM) of 82978 and 82986 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 82978 and 82986. First we will calculate the prime factors of 82978 and 82986.

Prime Factorization of 82978

Prime factors of 82978 are 2, 7, 5927. Prime factorization of 82978 in exponential form is:

82978 = 21 × 71 × 59271

Prime Factorization of 82986

Prime factors of 82986 are 2, 3, 13831. Prime factorization of 82986 in exponential form is:

82986 = 21 × 31 × 138311

Now multiplying the highest exponent prime factors to calculate the LCM of 82978 and 82986.

LCM(82978,82986) = 21 × 71 × 59271 × 31 × 138311
LCM(82978,82986) = 3443006154