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What is the Least Common Multiple of 42285 and 42296?

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 42285 and 42296 is 1788486360.

LCM(42285,42296) = 1788486360

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Least Common Multiple of 42285 and 42296 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42285 and 42296, than apply into the LCM equation.

GCF(42285,42296) = 1
LCM(42285,42296) = ( 42285 × 42296) / 1
LCM(42285,42296) = 1788486360 / 1
LCM(42285,42296) = 1788486360

Least Common Multiple (LCM) of 42285 and 42296 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42285 and 42296. First we will calculate the prime factors of 42285 and 42296.

Prime Factorization of 42285

Prime factors of 42285 are 3, 5, 2819. Prime factorization of 42285 in exponential form is:

42285 = 31 × 51 × 28191

Prime Factorization of 42296

Prime factors of 42296 are 2, 17, 311. Prime factorization of 42296 in exponential form is:

42296 = 23 × 171 × 3111

Now multiplying the highest exponent prime factors to calculate the LCM of 42285 and 42296.

LCM(42285,42296) = 31 × 51 × 28191 × 23 × 171 × 3111
LCM(42285,42296) = 1788486360