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What is the Least Common Multiple of 70581 and 70585?

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 70581 and 70585 is 4981959885.

LCM(70581,70585) = 4981959885

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Least Common Multiple of 70581 and 70585 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 70581 and 70585, than apply into the LCM equation.

GCF(70581,70585) = 1
LCM(70581,70585) = ( 70581 × 70585) / 1
LCM(70581,70585) = 4981959885 / 1
LCM(70581,70585) = 4981959885

Least Common Multiple (LCM) of 70581 and 70585 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 70581 and 70585. First we will calculate the prime factors of 70581 and 70585.

Prime Factorization of 70581

Prime factors of 70581 are 3, 7, 3361. Prime factorization of 70581 in exponential form is:

70581 = 31 × 71 × 33611

Prime Factorization of 70585

Prime factors of 70585 are 5, 19, 743. Prime factorization of 70585 in exponential form is:

70585 = 51 × 191 × 7431

Now multiplying the highest exponent prime factors to calculate the LCM of 70581 and 70585.

LCM(70581,70585) = 31 × 71 × 33611 × 51 × 191 × 7431
LCM(70581,70585) = 4981959885