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What is the Least Common Multiple of 67838 and 67854?

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 67838 and 67854 is 2301539826.

LCM(67838,67854) = 2301539826

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Least Common Multiple of 67838 and 67854 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 67838 and 67854, than apply into the LCM equation.

GCF(67838,67854) = 2
LCM(67838,67854) = ( 67838 × 67854) / 2
LCM(67838,67854) = 4603079652 / 2
LCM(67838,67854) = 2301539826

Least Common Multiple (LCM) of 67838 and 67854 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 67838 and 67854. First we will calculate the prime factors of 67838 and 67854.

Prime Factorization of 67838

Prime factors of 67838 are 2, 107, 317. Prime factorization of 67838 in exponential form is:

67838 = 21 × 1071 × 3171

Prime Factorization of 67854

Prime factors of 67854 are 2, 3, 43, 263. Prime factorization of 67854 in exponential form is:

67854 = 21 × 31 × 431 × 2631

Now multiplying the highest exponent prime factors to calculate the LCM of 67838 and 67854.

LCM(67838,67854) = 21 × 1071 × 3171 × 31 × 431 × 2631
LCM(67838,67854) = 2301539826