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What is the Least Common Multiple of 42585 and 42598?

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 42585 and 42598 is 1814035830.

LCM(42585,42598) = 1814035830

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Least Common Multiple of 42585 and 42598 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42585 and 42598, than apply into the LCM equation.

GCF(42585,42598) = 1
LCM(42585,42598) = ( 42585 × 42598) / 1
LCM(42585,42598) = 1814035830 / 1
LCM(42585,42598) = 1814035830

Least Common Multiple (LCM) of 42585 and 42598 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42585 and 42598. First we will calculate the prime factors of 42585 and 42598.

Prime Factorization of 42585

Prime factors of 42585 are 3, 5, 17, 167. Prime factorization of 42585 in exponential form is:

42585 = 31 × 51 × 171 × 1671

Prime Factorization of 42598

Prime factors of 42598 are 2, 19, 59. Prime factorization of 42598 in exponential form is:

42598 = 21 × 192 × 591

Now multiplying the highest exponent prime factors to calculate the LCM of 42585 and 42598.

LCM(42585,42598) = 31 × 51 × 171 × 1671 × 21 × 192 × 591
LCM(42585,42598) = 1814035830