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What is the Least Common Multiple of 81732 and 81752?

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 81732 and 81752 is 1670438616.

LCM(81732,81752) = 1670438616

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Least Common Multiple of 81732 and 81752 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81732 and 81752, than apply into the LCM equation.

GCF(81732,81752) = 4
LCM(81732,81752) = ( 81732 × 81752) / 4
LCM(81732,81752) = 6681754464 / 4
LCM(81732,81752) = 1670438616

Least Common Multiple (LCM) of 81732 and 81752 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81732 and 81752. First we will calculate the prime factors of 81732 and 81752.

Prime Factorization of 81732

Prime factors of 81732 are 2, 3, 7, 139. Prime factorization of 81732 in exponential form is:

81732 = 22 × 31 × 72 × 1391

Prime Factorization of 81752

Prime factors of 81752 are 2, 11, 929. Prime factorization of 81752 in exponential form is:

81752 = 23 × 111 × 9291

Now multiplying the highest exponent prime factors to calculate the LCM of 81732 and 81752.

LCM(81732,81752) = 23 × 31 × 72 × 1391 × 111 × 9291
LCM(81732,81752) = 1670438616