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What is the Least Common Multiple of 85774 and 85785?

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 85774 and 85785 is 7358122590.

LCM(85774,85785) = 7358122590

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Least Common Multiple of 85774 and 85785 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 85774 and 85785, than apply into the LCM equation.

GCF(85774,85785) = 1
LCM(85774,85785) = ( 85774 × 85785) / 1
LCM(85774,85785) = 7358122590 / 1
LCM(85774,85785) = 7358122590

Least Common Multiple (LCM) of 85774 and 85785 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 85774 and 85785. First we will calculate the prime factors of 85774 and 85785.

Prime Factorization of 85774

Prime factors of 85774 are 2, 13, 3299. Prime factorization of 85774 in exponential form is:

85774 = 21 × 131 × 32991

Prime Factorization of 85785

Prime factors of 85785 are 3, 5, 7, 19, 43. Prime factorization of 85785 in exponential form is:

85785 = 31 × 51 × 71 × 191 × 431

Now multiplying the highest exponent prime factors to calculate the LCM of 85774 and 85785.

LCM(85774,85785) = 21 × 131 × 32991 × 31 × 51 × 71 × 191 × 431
LCM(85774,85785) = 7358122590