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What is the Least Common Multiple of 78234 and 78249?

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 78234 and 78249 is 2040577422.

LCM(78234,78249) = 2040577422

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Least Common Multiple of 78234 and 78249 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78234 and 78249, than apply into the LCM equation.

GCF(78234,78249) = 3
LCM(78234,78249) = ( 78234 × 78249) / 3
LCM(78234,78249) = 6121732266 / 3
LCM(78234,78249) = 2040577422

Least Common Multiple (LCM) of 78234 and 78249 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78234 and 78249. First we will calculate the prime factors of 78234 and 78249.

Prime Factorization of 78234

Prime factors of 78234 are 2, 3, 13, 17, 59. Prime factorization of 78234 in exponential form is:

78234 = 21 × 31 × 131 × 171 × 591

Prime Factorization of 78249

Prime factors of 78249 are 3, 26083. Prime factorization of 78249 in exponential form is:

78249 = 31 × 260831

Now multiplying the highest exponent prime factors to calculate the LCM of 78234 and 78249.

LCM(78234,78249) = 21 × 31 × 131 × 171 × 591 × 260831
LCM(78234,78249) = 2040577422