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What is the Least Common Multiple of 39643 and 39654?

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 39643 and 39654 is 1572003522.

LCM(39643,39654) = 1572003522

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Least Common Multiple of 39643 and 39654 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39643 and 39654, than apply into the LCM equation.

GCF(39643,39654) = 1
LCM(39643,39654) = ( 39643 × 39654) / 1
LCM(39643,39654) = 1572003522 / 1
LCM(39643,39654) = 1572003522

Least Common Multiple (LCM) of 39643 and 39654 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39643 and 39654. First we will calculate the prime factors of 39643 and 39654.

Prime Factorization of 39643

Prime factors of 39643 are 29, 1367. Prime factorization of 39643 in exponential form is:

39643 = 291 × 13671

Prime Factorization of 39654

Prime factors of 39654 are 2, 3, 2203. Prime factorization of 39654 in exponential form is:

39654 = 21 × 32 × 22031

Now multiplying the highest exponent prime factors to calculate the LCM of 39643 and 39654.

LCM(39643,39654) = 291 × 13671 × 21 × 32 × 22031
LCM(39643,39654) = 1572003522