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What is the Least Common Multiple of 65790 and 65808?

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 65790 and 65808 is 240528240.

LCM(65790,65808) = 240528240

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Least Common Multiple of 65790 and 65808 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 65790 and 65808, than apply into the LCM equation.

GCF(65790,65808) = 18
LCM(65790,65808) = ( 65790 × 65808) / 18
LCM(65790,65808) = 4329508320 / 18
LCM(65790,65808) = 240528240

Least Common Multiple (LCM) of 65790 and 65808 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 65790 and 65808. First we will calculate the prime factors of 65790 and 65808.

Prime Factorization of 65790

Prime factors of 65790 are 2, 3, 5, 17, 43. Prime factorization of 65790 in exponential form is:

65790 = 21 × 32 × 51 × 171 × 431

Prime Factorization of 65808

Prime factors of 65808 are 2, 3, 457. Prime factorization of 65808 in exponential form is:

65808 = 24 × 32 × 4571

Now multiplying the highest exponent prime factors to calculate the LCM of 65790 and 65808.

LCM(65790,65808) = 24 × 32 × 51 × 171 × 431 × 4571
LCM(65790,65808) = 240528240