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What is the Least Common Multiple of 39489 and 39505?

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 39489 and 39505 is 1560012945.

LCM(39489,39505) = 1560012945

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Least Common Multiple of 39489 and 39505 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39489 and 39505, than apply into the LCM equation.

GCF(39489,39505) = 1
LCM(39489,39505) = ( 39489 × 39505) / 1
LCM(39489,39505) = 1560012945 / 1
LCM(39489,39505) = 1560012945

Least Common Multiple (LCM) of 39489 and 39505 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39489 and 39505. First we will calculate the prime factors of 39489 and 39505.

Prime Factorization of 39489

Prime factors of 39489 are 3, 13163. Prime factorization of 39489 in exponential form is:

39489 = 31 × 131631

Prime Factorization of 39505

Prime factors of 39505 are 5, 7901. Prime factorization of 39505 in exponential form is:

39505 = 51 × 79011

Now multiplying the highest exponent prime factors to calculate the LCM of 39489 and 39505.

LCM(39489,39505) = 31 × 131631 × 51 × 79011
LCM(39489,39505) = 1560012945