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What is the Least Common Multiple of 66861 and 66874?

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 66861 and 66874 is 4471262514.

LCM(66861,66874) = 4471262514

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Least Common Multiple of 66861 and 66874 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 66861 and 66874, than apply into the LCM equation.

GCF(66861,66874) = 1
LCM(66861,66874) = ( 66861 × 66874) / 1
LCM(66861,66874) = 4471262514 / 1
LCM(66861,66874) = 4471262514

Least Common Multiple (LCM) of 66861 and 66874 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 66861 and 66874. First we will calculate the prime factors of 66861 and 66874.

Prime Factorization of 66861

Prime factors of 66861 are 3, 17, 19, 23. Prime factorization of 66861 in exponential form is:

66861 = 32 × 171 × 191 × 231

Prime Factorization of 66874

Prime factors of 66874 are 2, 29, 1153. Prime factorization of 66874 in exponential form is:

66874 = 21 × 291 × 11531

Now multiplying the highest exponent prime factors to calculate the LCM of 66861 and 66874.

LCM(66861,66874) = 32 × 171 × 191 × 231 × 21 × 291 × 11531
LCM(66861,66874) = 4471262514