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What is the Least Common Multiple of 78871 and 78880?

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 78871 and 78880 is 6221344480.

LCM(78871,78880) = 6221344480

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Least Common Multiple of 78871 and 78880 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78871 and 78880, than apply into the LCM equation.

GCF(78871,78880) = 1
LCM(78871,78880) = ( 78871 × 78880) / 1
LCM(78871,78880) = 6221344480 / 1
LCM(78871,78880) = 6221344480

Least Common Multiple (LCM) of 78871 and 78880 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78871 and 78880. First we will calculate the prime factors of 78871 and 78880.

Prime Factorization of 78871

Prime factors of 78871 are 13, 6067. Prime factorization of 78871 in exponential form is:

78871 = 131 × 60671

Prime Factorization of 78880

Prime factors of 78880 are 2, 5, 17, 29. Prime factorization of 78880 in exponential form is:

78880 = 25 × 51 × 171 × 291

Now multiplying the highest exponent prime factors to calculate the LCM of 78871 and 78880.

LCM(78871,78880) = 131 × 60671 × 25 × 51 × 171 × 291
LCM(78871,78880) = 6221344480