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What is the Least Common Multiple of 82780 and 82786?

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 82780 and 82786 is 3426512540.

LCM(82780,82786) = 3426512540

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Least Common Multiple of 82780 and 82786 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 82780 and 82786, than apply into the LCM equation.

GCF(82780,82786) = 2
LCM(82780,82786) = ( 82780 × 82786) / 2
LCM(82780,82786) = 6853025080 / 2
LCM(82780,82786) = 3426512540

Least Common Multiple (LCM) of 82780 and 82786 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 82780 and 82786. First we will calculate the prime factors of 82780 and 82786.

Prime Factorization of 82780

Prime factors of 82780 are 2, 5, 4139. Prime factorization of 82780 in exponential form is:

82780 = 22 × 51 × 41391

Prime Factorization of 82786

Prime factors of 82786 are 2, 11, 53, 71. Prime factorization of 82786 in exponential form is:

82786 = 21 × 111 × 531 × 711

Now multiplying the highest exponent prime factors to calculate the LCM of 82780 and 82786.

LCM(82780,82786) = 22 × 51 × 41391 × 111 × 531 × 711
LCM(82780,82786) = 3426512540