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What is the Least Common Multiple of 43815 and 43828?

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 43815 and 43828 is 1920323820.

LCM(43815,43828) = 1920323820

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Least Common Multiple of 43815 and 43828 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 43815 and 43828, than apply into the LCM equation.

GCF(43815,43828) = 1
LCM(43815,43828) = ( 43815 × 43828) / 1
LCM(43815,43828) = 1920323820 / 1
LCM(43815,43828) = 1920323820

Least Common Multiple (LCM) of 43815 and 43828 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 43815 and 43828. First we will calculate the prime factors of 43815 and 43828.

Prime Factorization of 43815

Prime factors of 43815 are 3, 5, 23, 127. Prime factorization of 43815 in exponential form is:

43815 = 31 × 51 × 231 × 1271

Prime Factorization of 43828

Prime factors of 43828 are 2, 10957. Prime factorization of 43828 in exponential form is:

43828 = 22 × 109571

Now multiplying the highest exponent prime factors to calculate the LCM of 43815 and 43828.

LCM(43815,43828) = 31 × 51 × 231 × 1271 × 22 × 109571
LCM(43815,43828) = 1920323820