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What is the Least Common Multiple of 82731 and 82740?

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 82731 and 82740 is 2281720980.

LCM(82731,82740) = 2281720980

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Least Common Multiple of 82731 and 82740 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 82731 and 82740, than apply into the LCM equation.

GCF(82731,82740) = 3
LCM(82731,82740) = ( 82731 × 82740) / 3
LCM(82731,82740) = 6845162940 / 3
LCM(82731,82740) = 2281720980

Least Common Multiple (LCM) of 82731 and 82740 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 82731 and 82740. First we will calculate the prime factors of 82731 and 82740.

Prime Factorization of 82731

Prime factors of 82731 are 3, 11, 23, 109. Prime factorization of 82731 in exponential form is:

82731 = 31 × 111 × 231 × 1091

Prime Factorization of 82740

Prime factors of 82740 are 2, 3, 5, 7, 197. Prime factorization of 82740 in exponential form is:

82740 = 22 × 31 × 51 × 71 × 1971

Now multiplying the highest exponent prime factors to calculate the LCM of 82731 and 82740.

LCM(82731,82740) = 31 × 111 × 231 × 1091 × 22 × 51 × 71 × 1971
LCM(82731,82740) = 2281720980