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What is the Least Common Multiple of 38976 and 38981?

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 38976 and 38981 is 1519323456.

LCM(38976,38981) = 1519323456

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Least Common Multiple of 38976 and 38981 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 38976 and 38981, than apply into the LCM equation.

GCF(38976,38981) = 1
LCM(38976,38981) = ( 38976 × 38981) / 1
LCM(38976,38981) = 1519323456 / 1
LCM(38976,38981) = 1519323456

Least Common Multiple (LCM) of 38976 and 38981 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 38976 and 38981. First we will calculate the prime factors of 38976 and 38981.

Prime Factorization of 38976

Prime factors of 38976 are 2, 3, 7, 29. Prime factorization of 38976 in exponential form is:

38976 = 26 × 31 × 71 × 291

Prime Factorization of 38981

Prime factors of 38981 are 17, 2293. Prime factorization of 38981 in exponential form is:

38981 = 171 × 22931

Now multiplying the highest exponent prime factors to calculate the LCM of 38976 and 38981.

LCM(38976,38981) = 26 × 31 × 71 × 291 × 171 × 22931
LCM(38976,38981) = 1519323456