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What is the Least Common Multiple of 65474 and 65485?

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 65474 and 65485 is 4287564890.

LCM(65474,65485) = 4287564890

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Least Common Multiple of 65474 and 65485 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 65474 and 65485, than apply into the LCM equation.

GCF(65474,65485) = 1
LCM(65474,65485) = ( 65474 × 65485) / 1
LCM(65474,65485) = 4287564890 / 1
LCM(65474,65485) = 4287564890

Least Common Multiple (LCM) of 65474 and 65485 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 65474 and 65485. First we will calculate the prime factors of 65474 and 65485.

Prime Factorization of 65474

Prime factors of 65474 are 2, 19, 1723. Prime factorization of 65474 in exponential form is:

65474 = 21 × 191 × 17231

Prime Factorization of 65485

Prime factors of 65485 are 5, 7, 1871. Prime factorization of 65485 in exponential form is:

65485 = 51 × 71 × 18711

Now multiplying the highest exponent prime factors to calculate the LCM of 65474 and 65485.

LCM(65474,65485) = 21 × 191 × 17231 × 51 × 71 × 18711
LCM(65474,65485) = 4287564890