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What is the Least Common Multiple of 31871 and 31884?

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 31871 and 31884 is 1016174964.

LCM(31871,31884) = 1016174964

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Least Common Multiple of 31871 and 31884 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31871 and 31884, than apply into the LCM equation.

GCF(31871,31884) = 1
LCM(31871,31884) = ( 31871 × 31884) / 1
LCM(31871,31884) = 1016174964 / 1
LCM(31871,31884) = 1016174964

Least Common Multiple (LCM) of 31871 and 31884 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31871 and 31884. First we will calculate the prime factors of 31871 and 31884.

Prime Factorization of 31871

Prime factors of 31871 are 7, 29, 157. Prime factorization of 31871 in exponential form is:

31871 = 71 × 291 × 1571

Prime Factorization of 31884

Prime factors of 31884 are 2, 3, 2657. Prime factorization of 31884 in exponential form is:

31884 = 22 × 31 × 26571

Now multiplying the highest exponent prime factors to calculate the LCM of 31871 and 31884.

LCM(31871,31884) = 71 × 291 × 1571 × 22 × 31 × 26571
LCM(31871,31884) = 1016174964