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What is the Least Common Multiple of 47782 and 47790?

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 47782 and 47790 is 1141750890.

LCM(47782,47790) = 1141750890

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Least Common Multiple of 47782 and 47790 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 47782 and 47790, than apply into the LCM equation.

GCF(47782,47790) = 2
LCM(47782,47790) = ( 47782 × 47790) / 2
LCM(47782,47790) = 2283501780 / 2
LCM(47782,47790) = 1141750890

Least Common Multiple (LCM) of 47782 and 47790 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 47782 and 47790. First we will calculate the prime factors of 47782 and 47790.

Prime Factorization of 47782

Prime factors of 47782 are 2, 7, 3413. Prime factorization of 47782 in exponential form is:

47782 = 21 × 71 × 34131

Prime Factorization of 47790

Prime factors of 47790 are 2, 3, 5, 59. Prime factorization of 47790 in exponential form is:

47790 = 21 × 34 × 51 × 591

Now multiplying the highest exponent prime factors to calculate the LCM of 47782 and 47790.

LCM(47782,47790) = 21 × 71 × 34131 × 34 × 51 × 591
LCM(47782,47790) = 1141750890