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What is the Least Common Multiple of 85390 and 85407?

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 85390 and 85407 is 7292903730.

LCM(85390,85407) = 7292903730

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Least Common Multiple of 85390 and 85407 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 85390 and 85407, than apply into the LCM equation.

GCF(85390,85407) = 1
LCM(85390,85407) = ( 85390 × 85407) / 1
LCM(85390,85407) = 7292903730 / 1
LCM(85390,85407) = 7292903730

Least Common Multiple (LCM) of 85390 and 85407 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 85390 and 85407. First we will calculate the prime factors of 85390 and 85407.

Prime Factorization of 85390

Prime factors of 85390 are 2, 5, 8539. Prime factorization of 85390 in exponential form is:

85390 = 21 × 51 × 85391

Prime Factorization of 85407

Prime factors of 85407 are 3, 7, 83. Prime factorization of 85407 in exponential form is:

85407 = 31 × 73 × 831

Now multiplying the highest exponent prime factors to calculate the LCM of 85390 and 85407.

LCM(85390,85407) = 21 × 51 × 85391 × 31 × 73 × 831
LCM(85390,85407) = 7292903730