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What is the Least Common Multiple of 81704 and 81715?

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 81704 and 81715 is 6676442360.

LCM(81704,81715) = 6676442360

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Least Common Multiple of 81704 and 81715 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81704 and 81715, than apply into the LCM equation.

GCF(81704,81715) = 1
LCM(81704,81715) = ( 81704 × 81715) / 1
LCM(81704,81715) = 6676442360 / 1
LCM(81704,81715) = 6676442360

Least Common Multiple (LCM) of 81704 and 81715 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81704 and 81715. First we will calculate the prime factors of 81704 and 81715.

Prime Factorization of 81704

Prime factors of 81704 are 2, 7, 1459. Prime factorization of 81704 in exponential form is:

81704 = 23 × 71 × 14591

Prime Factorization of 81715

Prime factors of 81715 are 5, 59, 277. Prime factorization of 81715 in exponential form is:

81715 = 51 × 591 × 2771

Now multiplying the highest exponent prime factors to calculate the LCM of 81704 and 81715.

LCM(81704,81715) = 23 × 71 × 14591 × 51 × 591 × 2771
LCM(81704,81715) = 6676442360