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What is the Least Common Multiple of 81719 and 81739?

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 81719 and 81739 is 6679629341.

LCM(81719,81739) = 6679629341

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Least Common Multiple of 81719 and 81739 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81719 and 81739, than apply into the LCM equation.

GCF(81719,81739) = 1
LCM(81719,81739) = ( 81719 × 81739) / 1
LCM(81719,81739) = 6679629341 / 1
LCM(81719,81739) = 6679629341

Least Common Multiple (LCM) of 81719 and 81739 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81719 and 81739. First we will calculate the prime factors of 81719 and 81739.

Prime Factorization of 81719

Prime factors of 81719 are 11, 17, 19, 23. Prime factorization of 81719 in exponential form is:

81719 = 111 × 171 × 191 × 231

Prime Factorization of 81739

Prime factors of 81739 are 7, 11677. Prime factorization of 81739 in exponential form is:

81739 = 71 × 116771

Now multiplying the highest exponent prime factors to calculate the LCM of 81719 and 81739.

LCM(81719,81739) = 111 × 171 × 191 × 231 × 71 × 116771
LCM(81719,81739) = 6679629341