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What is the Least Common Multiple of 78931 and 78948?

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 78931 and 78948 is 366555564.

LCM(78931,78948) = 366555564

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Least Common Multiple of 78931 and 78948 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78931 and 78948, than apply into the LCM equation.

GCF(78931,78948) = 17
LCM(78931,78948) = ( 78931 × 78948) / 17
LCM(78931,78948) = 6231444588 / 17
LCM(78931,78948) = 366555564

Least Common Multiple (LCM) of 78931 and 78948 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78931 and 78948. First we will calculate the prime factors of 78931 and 78948.

Prime Factorization of 78931

Prime factors of 78931 are 17, 4643. Prime factorization of 78931 in exponential form is:

78931 = 171 × 46431

Prime Factorization of 78948

Prime factors of 78948 are 2, 3, 17, 43. Prime factorization of 78948 in exponential form is:

78948 = 22 × 33 × 171 × 431

Now multiplying the highest exponent prime factors to calculate the LCM of 78931 and 78948.

LCM(78931,78948) = 171 × 46431 × 22 × 33 × 431
LCM(78931,78948) = 366555564