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What is the Least Common Multiple of 39505 and 39521?

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 39505 and 39521 is 1561277105.

LCM(39505,39521) = 1561277105

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Least Common Multiple of 39505 and 39521 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39505 and 39521, than apply into the LCM equation.

GCF(39505,39521) = 1
LCM(39505,39521) = ( 39505 × 39521) / 1
LCM(39505,39521) = 1561277105 / 1
LCM(39505,39521) = 1561277105

Least Common Multiple (LCM) of 39505 and 39521 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39505 and 39521. First we will calculate the prime factors of 39505 and 39521.

Prime Factorization of 39505

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

39505 = 51 × 79011

Prime Factorization of 39521

Prime factors of 39521 are 39521. Prime factorization of 39521 in exponential form is:

39521 = 395211

Now multiplying the highest exponent prime factors to calculate the LCM of 39505 and 39521.

LCM(39505,39521) = 51 × 79011 × 395211
LCM(39505,39521) = 1561277105