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What is the Least Common Multiple of 85706 and 85715?

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 85706 and 85715 is 7346289790.

LCM(85706,85715) = 7346289790

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Least Common Multiple of 85706 and 85715 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 85706 and 85715, than apply into the LCM equation.

GCF(85706,85715) = 1
LCM(85706,85715) = ( 85706 × 85715) / 1
LCM(85706,85715) = 7346289790 / 1
LCM(85706,85715) = 7346289790

Least Common Multiple (LCM) of 85706 and 85715 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 85706 and 85715. First we will calculate the prime factors of 85706 and 85715.

Prime Factorization of 85706

Prime factors of 85706 are 2, 42853. Prime factorization of 85706 in exponential form is:

85706 = 21 × 428531

Prime Factorization of 85715

Prime factors of 85715 are 5, 7, 31, 79. Prime factorization of 85715 in exponential form is:

85715 = 51 × 71 × 311 × 791

Now multiplying the highest exponent prime factors to calculate the LCM of 85706 and 85715.

LCM(85706,85715) = 21 × 428531 × 51 × 71 × 311 × 791
LCM(85706,85715) = 7346289790