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What is the Least Common Multiple of 85521 and 85540?

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 85521 and 85540 is 7315466340.

LCM(85521,85540) = 7315466340

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Least Common Multiple of 85521 and 85540 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 85521 and 85540, than apply into the LCM equation.

GCF(85521,85540) = 1
LCM(85521,85540) = ( 85521 × 85540) / 1
LCM(85521,85540) = 7315466340 / 1
LCM(85521,85540) = 7315466340

Least Common Multiple (LCM) of 85521 and 85540 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 85521 and 85540. First we will calculate the prime factors of 85521 and 85540.

Prime Factorization of 85521

Prime factors of 85521 are 3, 29, 983. Prime factorization of 85521 in exponential form is:

85521 = 31 × 291 × 9831

Prime Factorization of 85540

Prime factors of 85540 are 2, 5, 7, 13, 47. Prime factorization of 85540 in exponential form is:

85540 = 22 × 51 × 71 × 131 × 471

Now multiplying the highest exponent prime factors to calculate the LCM of 85521 and 85540.

LCM(85521,85540) = 31 × 291 × 9831 × 22 × 51 × 71 × 131 × 471
LCM(85521,85540) = 7315466340