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What is the Least Common Multiple of 30740 and 30755?

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 30740 and 30755 is 189081740.

LCM(30740,30755) = 189081740

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Least Common Multiple of 30740 and 30755 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 30740 and 30755, than apply into the LCM equation.

GCF(30740,30755) = 5
LCM(30740,30755) = ( 30740 × 30755) / 5
LCM(30740,30755) = 945408700 / 5
LCM(30740,30755) = 189081740

Least Common Multiple (LCM) of 30740 and 30755 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 30740 and 30755. First we will calculate the prime factors of 30740 and 30755.

Prime Factorization of 30740

Prime factors of 30740 are 2, 5, 29, 53. Prime factorization of 30740 in exponential form is:

30740 = 22 × 51 × 291 × 531

Prime Factorization of 30755

Prime factors of 30755 are 5, 6151. Prime factorization of 30755 in exponential form is:

30755 = 51 × 61511

Now multiplying the highest exponent prime factors to calculate the LCM of 30740 and 30755.

LCM(30740,30755) = 22 × 51 × 291 × 531 × 61511
LCM(30740,30755) = 189081740