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What is the Least Common Multiple of 42976 and 42994?

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 42976 and 42994 is 923855072.

LCM(42976,42994) = 923855072

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Least Common Multiple of 42976 and 42994 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42976 and 42994, than apply into the LCM equation.

GCF(42976,42994) = 2
LCM(42976,42994) = ( 42976 × 42994) / 2
LCM(42976,42994) = 1847710144 / 2
LCM(42976,42994) = 923855072

Least Common Multiple (LCM) of 42976 and 42994 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42976 and 42994. First we will calculate the prime factors of 42976 and 42994.

Prime Factorization of 42976

Prime factors of 42976 are 2, 17, 79. Prime factorization of 42976 in exponential form is:

42976 = 25 × 171 × 791

Prime Factorization of 42994

Prime factors of 42994 are 2, 7, 37, 83. Prime factorization of 42994 in exponential form is:

42994 = 21 × 71 × 371 × 831

Now multiplying the highest exponent prime factors to calculate the LCM of 42976 and 42994.

LCM(42976,42994) = 25 × 171 × 791 × 71 × 371 × 831
LCM(42976,42994) = 923855072