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What is the Least Common Multiple of 38643 and 38647?

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 38643 and 38647 is 1493436021.

LCM(38643,38647) = 1493436021

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Least Common Multiple of 38643 and 38647 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 38643 and 38647, than apply into the LCM equation.

GCF(38643,38647) = 1
LCM(38643,38647) = ( 38643 × 38647) / 1
LCM(38643,38647) = 1493436021 / 1
LCM(38643,38647) = 1493436021

Least Common Multiple (LCM) of 38643 and 38647 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 38643 and 38647. First we will calculate the prime factors of 38643 and 38647.

Prime Factorization of 38643

Prime factors of 38643 are 3, 11, 1171. Prime factorization of 38643 in exponential form is:

38643 = 31 × 111 × 11711

Prime Factorization of 38647

Prime factors of 38647 are 7, 5521. Prime factorization of 38647 in exponential form is:

38647 = 71 × 55211

Now multiplying the highest exponent prime factors to calculate the LCM of 38643 and 38647.

LCM(38643,38647) = 31 × 111 × 11711 × 71 × 55211
LCM(38643,38647) = 1493436021