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What is the Least Common Multiple of 78523 and 78542?

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 78523 and 78542 is 6167353466.

LCM(78523,78542) = 6167353466

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Least Common Multiple of 78523 and 78542 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78523 and 78542, than apply into the LCM equation.

GCF(78523,78542) = 1
LCM(78523,78542) = ( 78523 × 78542) / 1
LCM(78523,78542) = 6167353466 / 1
LCM(78523,78542) = 6167353466

Least Common Multiple (LCM) of 78523 and 78542 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78523 and 78542. First we will calculate the prime factors of 78523 and 78542.

Prime Factorization of 78523

Prime factors of 78523 are 17, 31, 149. Prime factorization of 78523 in exponential form is:

78523 = 171 × 311 × 1491

Prime Factorization of 78542

Prime factors of 78542 are 2, 173, 227. Prime factorization of 78542 in exponential form is:

78542 = 21 × 1731 × 2271

Now multiplying the highest exponent prime factors to calculate the LCM of 78523 and 78542.

LCM(78523,78542) = 171 × 311 × 1491 × 21 × 1731 × 2271
LCM(78523,78542) = 6167353466