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What is the Least Common Multiple of 68378 and 68387?

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 68378 and 68387 is 4676166286.

LCM(68378,68387) = 4676166286

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Least Common Multiple of 68378 and 68387 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 68378 and 68387, than apply into the LCM equation.

GCF(68378,68387) = 1
LCM(68378,68387) = ( 68378 × 68387) / 1
LCM(68378,68387) = 4676166286 / 1
LCM(68378,68387) = 4676166286

Least Common Multiple (LCM) of 68378 and 68387 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 68378 and 68387. First we will calculate the prime factors of 68378 and 68387.

Prime Factorization of 68378

Prime factors of 68378 are 2, 179, 191. Prime factorization of 68378 in exponential form is:

68378 = 21 × 1791 × 1911

Prime Factorization of 68387

Prime factors of 68387 are 11, 6217. Prime factorization of 68387 in exponential form is:

68387 = 111 × 62171

Now multiplying the highest exponent prime factors to calculate the LCM of 68378 and 68387.

LCM(68378,68387) = 21 × 1791 × 1911 × 111 × 62171
LCM(68378,68387) = 4676166286