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What is the Least Common Multiple of 43860 and 43880?

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 43860 and 43880 is 96228840.

LCM(43860,43880) = 96228840

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Least Common Multiple of 43860 and 43880 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 43860 and 43880, than apply into the LCM equation.

GCF(43860,43880) = 20
LCM(43860,43880) = ( 43860 × 43880) / 20
LCM(43860,43880) = 1924576800 / 20
LCM(43860,43880) = 96228840

Least Common Multiple (LCM) of 43860 and 43880 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 43860 and 43880. First we will calculate the prime factors of 43860 and 43880.

Prime Factorization of 43860

Prime factors of 43860 are 2, 3, 5, 17, 43. Prime factorization of 43860 in exponential form is:

43860 = 22 × 31 × 51 × 171 × 431

Prime Factorization of 43880

Prime factors of 43880 are 2, 5, 1097. Prime factorization of 43880 in exponential form is:

43880 = 23 × 51 × 10971

Now multiplying the highest exponent prime factors to calculate the LCM of 43860 and 43880.

LCM(43860,43880) = 23 × 31 × 51 × 171 × 431 × 10971
LCM(43860,43880) = 96228840