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What is the Least Common Multiple of 38970 and 38987?

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 38970 and 38987 is 1519323390.

LCM(38970,38987) = 1519323390

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Least Common Multiple of 38970 and 38987 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 38970 and 38987, than apply into the LCM equation.

GCF(38970,38987) = 1
LCM(38970,38987) = ( 38970 × 38987) / 1
LCM(38970,38987) = 1519323390 / 1
LCM(38970,38987) = 1519323390

Least Common Multiple (LCM) of 38970 and 38987 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 38970 and 38987. First we will calculate the prime factors of 38970 and 38987.

Prime Factorization of 38970

Prime factors of 38970 are 2, 3, 5, 433. Prime factorization of 38970 in exponential form is:

38970 = 21 × 32 × 51 × 4331

Prime Factorization of 38987

Prime factors of 38987 are 13, 2999. Prime factorization of 38987 in exponential form is:

38987 = 131 × 29991

Now multiplying the highest exponent prime factors to calculate the LCM of 38970 and 38987.

LCM(38970,38987) = 21 × 32 × 51 × 4331 × 131 × 29991
LCM(38970,38987) = 1519323390