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What is the Least Common Multiple of 43785 and 43804?

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 43785 and 43804 is 1917958140.

LCM(43785,43804) = 1917958140

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Least Common Multiple of 43785 and 43804 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 43785 and 43804, than apply into the LCM equation.

GCF(43785,43804) = 1
LCM(43785,43804) = ( 43785 × 43804) / 1
LCM(43785,43804) = 1917958140 / 1
LCM(43785,43804) = 1917958140

Least Common Multiple (LCM) of 43785 and 43804 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 43785 and 43804. First we will calculate the prime factors of 43785 and 43804.

Prime Factorization of 43785

Prime factors of 43785 are 3, 5, 7, 139. Prime factorization of 43785 in exponential form is:

43785 = 32 × 51 × 71 × 1391

Prime Factorization of 43804

Prime factors of 43804 are 2, 47, 233. Prime factorization of 43804 in exponential form is:

43804 = 22 × 471 × 2331

Now multiplying the highest exponent prime factors to calculate the LCM of 43785 and 43804.

LCM(43785,43804) = 32 × 51 × 71 × 1391 × 22 × 471 × 2331
LCM(43785,43804) = 1917958140