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What is the Least Common Multiple of 82115 and 82128?

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 82115 and 82128 is 6743940720.

LCM(82115,82128) = 6743940720

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Least Common Multiple of 82115 and 82128 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 82115 and 82128, than apply into the LCM equation.

GCF(82115,82128) = 1
LCM(82115,82128) = ( 82115 × 82128) / 1
LCM(82115,82128) = 6743940720 / 1
LCM(82115,82128) = 6743940720

Least Common Multiple (LCM) of 82115 and 82128 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 82115 and 82128. First we will calculate the prime factors of 82115 and 82128.

Prime Factorization of 82115

Prime factors of 82115 are 5, 11, 1493. Prime factorization of 82115 in exponential form is:

82115 = 51 × 111 × 14931

Prime Factorization of 82128

Prime factors of 82128 are 2, 3, 29, 59. Prime factorization of 82128 in exponential form is:

82128 = 24 × 31 × 291 × 591

Now multiplying the highest exponent prime factors to calculate the LCM of 82115 and 82128.

LCM(82115,82128) = 51 × 111 × 14931 × 24 × 31 × 291 × 591
LCM(82115,82128) = 6743940720