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What is the Least Common Multiple of 38805 and 38818?

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 38805 and 38818 is 115871730.

LCM(38805,38818) = 115871730

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Least Common Multiple of 38805 and 38818 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 38805 and 38818, than apply into the LCM equation.

GCF(38805,38818) = 13
LCM(38805,38818) = ( 38805 × 38818) / 13
LCM(38805,38818) = 1506332490 / 13
LCM(38805,38818) = 115871730

Least Common Multiple (LCM) of 38805 and 38818 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 38805 and 38818. First we will calculate the prime factors of 38805 and 38818.

Prime Factorization of 38805

Prime factors of 38805 are 3, 5, 13, 199. Prime factorization of 38805 in exponential form is:

38805 = 31 × 51 × 131 × 1991

Prime Factorization of 38818

Prime factors of 38818 are 2, 13, 1493. Prime factorization of 38818 in exponential form is:

38818 = 21 × 131 × 14931

Now multiplying the highest exponent prime factors to calculate the LCM of 38805 and 38818.

LCM(38805,38818) = 31 × 51 × 131 × 1991 × 21 × 14931
LCM(38805,38818) = 115871730