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What is the Least Common Multiple of 69315 and 69331?

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 69315 and 69331 is 4805678265.

LCM(69315,69331) = 4805678265

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Least Common Multiple of 69315 and 69331 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 69315 and 69331, than apply into the LCM equation.

GCF(69315,69331) = 1
LCM(69315,69331) = ( 69315 × 69331) / 1
LCM(69315,69331) = 4805678265 / 1
LCM(69315,69331) = 4805678265

Least Common Multiple (LCM) of 69315 and 69331 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 69315 and 69331. First we will calculate the prime factors of 69315 and 69331.

Prime Factorization of 69315

Prime factors of 69315 are 3, 5, 4621. Prime factorization of 69315 in exponential form is:

69315 = 31 × 51 × 46211

Prime Factorization of 69331

Prime factors of 69331 are 19, 41, 89. Prime factorization of 69331 in exponential form is:

69331 = 191 × 411 × 891

Now multiplying the highest exponent prime factors to calculate the LCM of 69315 and 69331.

LCM(69315,69331) = 31 × 51 × 46211 × 191 × 411 × 891
LCM(69315,69331) = 4805678265