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What is the Least Common Multiple of 68380 and 68394?

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 68380 and 68394 is 2338390860.

LCM(68380,68394) = 2338390860

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Least Common Multiple of 68380 and 68394 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 68380 and 68394, than apply into the LCM equation.

GCF(68380,68394) = 2
LCM(68380,68394) = ( 68380 × 68394) / 2
LCM(68380,68394) = 4676781720 / 2
LCM(68380,68394) = 2338390860

Least Common Multiple (LCM) of 68380 and 68394 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 68380 and 68394. First we will calculate the prime factors of 68380 and 68394.

Prime Factorization of 68380

Prime factors of 68380 are 2, 5, 13, 263. Prime factorization of 68380 in exponential form is:

68380 = 22 × 51 × 131 × 2631

Prime Factorization of 68394

Prime factors of 68394 are 2, 3, 11399. Prime factorization of 68394 in exponential form is:

68394 = 21 × 31 × 113991

Now multiplying the highest exponent prime factors to calculate the LCM of 68380 and 68394.

LCM(68380,68394) = 22 × 51 × 131 × 2631 × 31 × 113991
LCM(68380,68394) = 2338390860