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What is the Least Common Multiple of 81868 and 81873?

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 81868 and 81873 is 6702778764.

LCM(81868,81873) = 6702778764

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Least Common Multiple of 81868 and 81873 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81868 and 81873, than apply into the LCM equation.

GCF(81868,81873) = 1
LCM(81868,81873) = ( 81868 × 81873) / 1
LCM(81868,81873) = 6702778764 / 1
LCM(81868,81873) = 6702778764

Least Common Multiple (LCM) of 81868 and 81873 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81868 and 81873. First we will calculate the prime factors of 81868 and 81873.

Prime Factorization of 81868

Prime factors of 81868 are 2, 97, 211. Prime factorization of 81868 in exponential form is:

81868 = 22 × 971 × 2111

Prime Factorization of 81873

Prime factors of 81873 are 3, 11, 827. Prime factorization of 81873 in exponential form is:

81873 = 32 × 111 × 8271

Now multiplying the highest exponent prime factors to calculate the LCM of 81868 and 81873.

LCM(81868,81873) = 22 × 971 × 2111 × 32 × 111 × 8271
LCM(81868,81873) = 6702778764