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What is the Least Common Multiple of 43890 and 43895?

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 43890 and 43895 is 385310310.

LCM(43890,43895) = 385310310

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Least Common Multiple of 43890 and 43895 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 43890 and 43895, than apply into the LCM equation.

GCF(43890,43895) = 5
LCM(43890,43895) = ( 43890 × 43895) / 5
LCM(43890,43895) = 1926551550 / 5
LCM(43890,43895) = 385310310

Least Common Multiple (LCM) of 43890 and 43895 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 43890 and 43895. First we will calculate the prime factors of 43890 and 43895.

Prime Factorization of 43890

Prime factors of 43890 are 2, 3, 5, 7, 11, 19. Prime factorization of 43890 in exponential form is:

43890 = 21 × 31 × 51 × 71 × 111 × 191

Prime Factorization of 43895

Prime factors of 43895 are 5, 8779. Prime factorization of 43895 in exponential form is:

43895 = 51 × 87791

Now multiplying the highest exponent prime factors to calculate the LCM of 43890 and 43895.

LCM(43890,43895) = 21 × 31 × 51 × 71 × 111 × 191 × 87791
LCM(43890,43895) = 385310310