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What is the Least Common Multiple of 42782 and 42797?

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 42782 and 42797 is 1830941254.

LCM(42782,42797) = 1830941254

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Least Common Multiple of 42782 and 42797 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42782 and 42797, than apply into the LCM equation.

GCF(42782,42797) = 1
LCM(42782,42797) = ( 42782 × 42797) / 1
LCM(42782,42797) = 1830941254 / 1
LCM(42782,42797) = 1830941254

Least Common Multiple (LCM) of 42782 and 42797 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42782 and 42797. First we will calculate the prime factors of 42782 and 42797.

Prime Factorization of 42782

Prime factors of 42782 are 2, 21391. Prime factorization of 42782 in exponential form is:

42782 = 21 × 213911

Prime Factorization of 42797

Prime factors of 42797 are 42797. Prime factorization of 42797 in exponential form is:

42797 = 427971

Now multiplying the highest exponent prime factors to calculate the LCM of 42782 and 42797.

LCM(42782,42797) = 21 × 213911 × 427971
LCM(42782,42797) = 1830941254