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What is the Least Common Multiple of 78705 and 78719?

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 78705 and 78719 is 6195578895.

LCM(78705,78719) = 6195578895

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Least Common Multiple of 78705 and 78719 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78705 and 78719, than apply into the LCM equation.

GCF(78705,78719) = 1
LCM(78705,78719) = ( 78705 × 78719) / 1
LCM(78705,78719) = 6195578895 / 1
LCM(78705,78719) = 6195578895

Least Common Multiple (LCM) of 78705 and 78719 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78705 and 78719. First we will calculate the prime factors of 78705 and 78719.

Prime Factorization of 78705

Prime factors of 78705 are 3, 5, 11, 53. Prime factorization of 78705 in exponential form is:

78705 = 33 × 51 × 111 × 531

Prime Factorization of 78719

Prime factors of 78719 are 223, 353. Prime factorization of 78719 in exponential form is:

78719 = 2231 × 3531

Now multiplying the highest exponent prime factors to calculate the LCM of 78705 and 78719.

LCM(78705,78719) = 33 × 51 × 111 × 531 × 2231 × 3531
LCM(78705,78719) = 6195578895