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What is the Least Common Multiple of 39427 and 39440?

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 39427 and 39440 is 1555000880.

LCM(39427,39440) = 1555000880

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Least Common Multiple of 39427 and 39440 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39427 and 39440, than apply into the LCM equation.

GCF(39427,39440) = 1
LCM(39427,39440) = ( 39427 × 39440) / 1
LCM(39427,39440) = 1555000880 / 1
LCM(39427,39440) = 1555000880

Least Common Multiple (LCM) of 39427 and 39440 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39427 and 39440. First we will calculate the prime factors of 39427 and 39440.

Prime Factorization of 39427

Prime factors of 39427 are 89, 443. Prime factorization of 39427 in exponential form is:

39427 = 891 × 4431

Prime Factorization of 39440

Prime factors of 39440 are 2, 5, 17, 29. Prime factorization of 39440 in exponential form is:

39440 = 24 × 51 × 171 × 291

Now multiplying the highest exponent prime factors to calculate the LCM of 39427 and 39440.

LCM(39427,39440) = 891 × 4431 × 24 × 51 × 171 × 291
LCM(39427,39440) = 1555000880