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What is the Least Common Multiple of 78778 and 78783?

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 78778 and 78783 is 6206367174.

LCM(78778,78783) = 6206367174

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Least Common Multiple of 78778 and 78783 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78778 and 78783, than apply into the LCM equation.

GCF(78778,78783) = 1
LCM(78778,78783) = ( 78778 × 78783) / 1
LCM(78778,78783) = 6206367174 / 1
LCM(78778,78783) = 6206367174

Least Common Multiple (LCM) of 78778 and 78783 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78778 and 78783. First we will calculate the prime factors of 78778 and 78783.

Prime Factorization of 78778

Prime factors of 78778 are 2, 7, 17, 331. Prime factorization of 78778 in exponential form is:

78778 = 21 × 71 × 171 × 3311

Prime Factorization of 78783

Prime factors of 78783 are 3, 26261. Prime factorization of 78783 in exponential form is:

78783 = 31 × 262611

Now multiplying the highest exponent prime factors to calculate the LCM of 78778 and 78783.

LCM(78778,78783) = 21 × 71 × 171 × 3311 × 31 × 262611
LCM(78778,78783) = 6206367174