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What is the Least Common Multiple of 19617 and 19635?

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 19617 and 19635 is 128393265.

LCM(19617,19635) = 128393265

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Least Common Multiple of 19617 and 19635 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 19617 and 19635, than apply into the LCM equation.

GCF(19617,19635) = 3
LCM(19617,19635) = ( 19617 × 19635) / 3
LCM(19617,19635) = 385179795 / 3
LCM(19617,19635) = 128393265

Least Common Multiple (LCM) of 19617 and 19635 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 19617 and 19635. First we will calculate the prime factors of 19617 and 19635.

Prime Factorization of 19617

Prime factors of 19617 are 3, 13, 503. Prime factorization of 19617 in exponential form is:

19617 = 31 × 131 × 5031

Prime Factorization of 19635

Prime factors of 19635 are 3, 5, 7, 11, 17. Prime factorization of 19635 in exponential form is:

19635 = 31 × 51 × 71 × 111 × 171

Now multiplying the highest exponent prime factors to calculate the LCM of 19617 and 19635.

LCM(19617,19635) = 31 × 131 × 5031 × 51 × 71 × 111 × 171
LCM(19617,19635) = 128393265