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What is the Least Common Multiple of 71300 and 71320?

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 71300 and 71320 is 254255800.

LCM(71300,71320) = 254255800

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Least Common Multiple of 71300 and 71320 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 71300 and 71320, than apply into the LCM equation.

GCF(71300,71320) = 20
LCM(71300,71320) = ( 71300 × 71320) / 20
LCM(71300,71320) = 5085116000 / 20
LCM(71300,71320) = 254255800

Least Common Multiple (LCM) of 71300 and 71320 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 71300 and 71320. First we will calculate the prime factors of 71300 and 71320.

Prime Factorization of 71300

Prime factors of 71300 are 2, 5, 23, 31. Prime factorization of 71300 in exponential form is:

71300 = 22 × 52 × 231 × 311

Prime Factorization of 71320

Prime factors of 71320 are 2, 5, 1783. Prime factorization of 71320 in exponential form is:

71320 = 23 × 51 × 17831

Now multiplying the highest exponent prime factors to calculate the LCM of 71300 and 71320.

LCM(71300,71320) = 23 × 52 × 231 × 311 × 17831
LCM(71300,71320) = 254255800