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What is the Least Common Multiple of 27730 and 27745?

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 27730 and 27745 is 153873770.

LCM(27730,27745) = 153873770

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Least Common Multiple of 27730 and 27745 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 27730 and 27745, than apply into the LCM equation.

GCF(27730,27745) = 5
LCM(27730,27745) = ( 27730 × 27745) / 5
LCM(27730,27745) = 769368850 / 5
LCM(27730,27745) = 153873770

Least Common Multiple (LCM) of 27730 and 27745 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 27730 and 27745. First we will calculate the prime factors of 27730 and 27745.

Prime Factorization of 27730

Prime factors of 27730 are 2, 5, 47, 59. Prime factorization of 27730 in exponential form is:

27730 = 21 × 51 × 471 × 591

Prime Factorization of 27745

Prime factors of 27745 are 5, 31, 179. Prime factorization of 27745 in exponential form is:

27745 = 51 × 311 × 1791

Now multiplying the highest exponent prime factors to calculate the LCM of 27730 and 27745.

LCM(27730,27745) = 21 × 51 × 471 × 591 × 311 × 1791
LCM(27730,27745) = 153873770