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What is the Least Common Multiple of 47705 and 47709?

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 47705 and 47709 is 2275957845.

LCM(47705,47709) = 2275957845

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Least Common Multiple of 47705 and 47709 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 47705 and 47709, than apply into the LCM equation.

GCF(47705,47709) = 1
LCM(47705,47709) = ( 47705 × 47709) / 1
LCM(47705,47709) = 2275957845 / 1
LCM(47705,47709) = 2275957845

Least Common Multiple (LCM) of 47705 and 47709 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 47705 and 47709. First we will calculate the prime factors of 47705 and 47709.

Prime Factorization of 47705

Prime factors of 47705 are 5, 7, 29, 47. Prime factorization of 47705 in exponential form is:

47705 = 51 × 71 × 291 × 471

Prime Factorization of 47709

Prime factors of 47709 are 3, 19, 31. Prime factorization of 47709 in exponential form is:

47709 = 34 × 191 × 311

Now multiplying the highest exponent prime factors to calculate the LCM of 47705 and 47709.

LCM(47705,47709) = 51 × 71 × 291 × 471 × 34 × 191 × 311
LCM(47705,47709) = 2275957845