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What is the Least Common Multiple of 42347 and 42356?

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 42347 and 42356 is 1793649532.

LCM(42347,42356) = 1793649532

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Least Common Multiple of 42347 and 42356 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42347 and 42356, than apply into the LCM equation.

GCF(42347,42356) = 1
LCM(42347,42356) = ( 42347 × 42356) / 1
LCM(42347,42356) = 1793649532 / 1
LCM(42347,42356) = 1793649532

Least Common Multiple (LCM) of 42347 and 42356 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42347 and 42356. First we will calculate the prime factors of 42347 and 42356.

Prime Factorization of 42347

Prime factors of 42347 are 17, 47, 53. Prime factorization of 42347 in exponential form is:

42347 = 171 × 471 × 531

Prime Factorization of 42356

Prime factors of 42356 are 2, 10589. Prime factorization of 42356 in exponential form is:

42356 = 22 × 105891

Now multiplying the highest exponent prime factors to calculate the LCM of 42347 and 42356.

LCM(42347,42356) = 171 × 471 × 531 × 22 × 105891
LCM(42347,42356) = 1793649532