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What is the Least Common Multiple of 72882 and 72890?

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 72882 and 72890 is 2656184490.

LCM(72882,72890) = 2656184490

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Least Common Multiple of 72882 and 72890 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 72882 and 72890, than apply into the LCM equation.

GCF(72882,72890) = 2
LCM(72882,72890) = ( 72882 × 72890) / 2
LCM(72882,72890) = 5312368980 / 2
LCM(72882,72890) = 2656184490

Least Common Multiple (LCM) of 72882 and 72890 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 72882 and 72890. First we will calculate the prime factors of 72882 and 72890.

Prime Factorization of 72882

Prime factors of 72882 are 2, 3, 4049. Prime factorization of 72882 in exponential form is:

72882 = 21 × 32 × 40491

Prime Factorization of 72890

Prime factors of 72890 are 2, 5, 37, 197. Prime factorization of 72890 in exponential form is:

72890 = 21 × 51 × 371 × 1971

Now multiplying the highest exponent prime factors to calculate the LCM of 72882 and 72890.

LCM(72882,72890) = 21 × 32 × 40491 × 51 × 371 × 1971
LCM(72882,72890) = 2656184490