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What is the Least Common Multiple of 66997 and 67004?

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 66997 and 67004 is 641295284.

LCM(66997,67004) = 641295284

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Least Common Multiple of 66997 and 67004 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 66997 and 67004, than apply into the LCM equation.

GCF(66997,67004) = 7
LCM(66997,67004) = ( 66997 × 67004) / 7
LCM(66997,67004) = 4489066988 / 7
LCM(66997,67004) = 641295284

Least Common Multiple (LCM) of 66997 and 67004 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 66997 and 67004. First we will calculate the prime factors of 66997 and 67004.

Prime Factorization of 66997

Prime factors of 66997 are 7, 17, 563. Prime factorization of 66997 in exponential form is:

66997 = 71 × 171 × 5631

Prime Factorization of 67004

Prime factors of 67004 are 2, 7, 2393. Prime factorization of 67004 in exponential form is:

67004 = 22 × 71 × 23931

Now multiplying the highest exponent prime factors to calculate the LCM of 66997 and 67004.

LCM(66997,67004) = 71 × 171 × 5631 × 22 × 23931
LCM(66997,67004) = 641295284