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What is the Least Common Multiple of 39649 and 39666?

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 39649 and 39666 is 1572717234.

LCM(39649,39666) = 1572717234

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Least Common Multiple of 39649 and 39666 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39649 and 39666, than apply into the LCM equation.

GCF(39649,39666) = 1
LCM(39649,39666) = ( 39649 × 39666) / 1
LCM(39649,39666) = 1572717234 / 1
LCM(39649,39666) = 1572717234

Least Common Multiple (LCM) of 39649 and 39666 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39649 and 39666. First we will calculate the prime factors of 39649 and 39666.

Prime Factorization of 39649

Prime factors of 39649 are 31, 1279. Prime factorization of 39649 in exponential form is:

39649 = 311 × 12791

Prime Factorization of 39666

Prime factors of 39666 are 2, 3, 11, 601. Prime factorization of 39666 in exponential form is:

39666 = 21 × 31 × 111 × 6011

Now multiplying the highest exponent prime factors to calculate the LCM of 39649 and 39666.

LCM(39649,39666) = 311 × 12791 × 21 × 31 × 111 × 6011
LCM(39649,39666) = 1572717234