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What is the Least Common Multiple of 70281 and 70285?

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 70281 and 70285 is 4939700085.

LCM(70281,70285) = 4939700085

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Least Common Multiple of 70281 and 70285 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 70281 and 70285, than apply into the LCM equation.

GCF(70281,70285) = 1
LCM(70281,70285) = ( 70281 × 70285) / 1
LCM(70281,70285) = 4939700085 / 1
LCM(70281,70285) = 4939700085

Least Common Multiple (LCM) of 70281 and 70285 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 70281 and 70285. First we will calculate the prime factors of 70281 and 70285.

Prime Factorization of 70281

Prime factors of 70281 are 3, 19, 137. Prime factorization of 70281 in exponential form is:

70281 = 33 × 191 × 1371

Prime Factorization of 70285

Prime factors of 70285 are 5, 14057. Prime factorization of 70285 in exponential form is:

70285 = 51 × 140571

Now multiplying the highest exponent prime factors to calculate the LCM of 70281 and 70285.

LCM(70281,70285) = 33 × 191 × 1371 × 51 × 140571
LCM(70281,70285) = 4939700085