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What is the Least Common Multiple of 75474 and 75481?

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 75474 and 75481 is 813836142.

LCM(75474,75481) = 813836142

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Least Common Multiple of 75474 and 75481 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 75474 and 75481, than apply into the LCM equation.

GCF(75474,75481) = 7
LCM(75474,75481) = ( 75474 × 75481) / 7
LCM(75474,75481) = 5696852994 / 7
LCM(75474,75481) = 813836142

Least Common Multiple (LCM) of 75474 and 75481 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 75474 and 75481. First we will calculate the prime factors of 75474 and 75481.

Prime Factorization of 75474

Prime factors of 75474 are 2, 3, 7, 599. Prime factorization of 75474 in exponential form is:

75474 = 21 × 32 × 71 × 5991

Prime Factorization of 75481

Prime factors of 75481 are 7, 41, 263. Prime factorization of 75481 in exponential form is:

75481 = 71 × 411 × 2631

Now multiplying the highest exponent prime factors to calculate the LCM of 75474 and 75481.

LCM(75474,75481) = 21 × 32 × 71 × 5991 × 411 × 2631
LCM(75474,75481) = 813836142