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What is the Least Common Multiple of 17798 and 17809?

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 17798 and 17809 is 28814962.

LCM(17798,17809) = 28814962

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Least Common Multiple of 17798 and 17809 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 17798 and 17809, than apply into the LCM equation.

GCF(17798,17809) = 11
LCM(17798,17809) = ( 17798 × 17809) / 11
LCM(17798,17809) = 316964582 / 11
LCM(17798,17809) = 28814962

Least Common Multiple (LCM) of 17798 and 17809 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 17798 and 17809. First we will calculate the prime factors of 17798 and 17809.

Prime Factorization of 17798

Prime factors of 17798 are 2, 11, 809. Prime factorization of 17798 in exponential form is:

17798 = 21 × 111 × 8091

Prime Factorization of 17809

Prime factors of 17809 are 11, 1619. Prime factorization of 17809 in exponential form is:

17809 = 111 × 16191

Now multiplying the highest exponent prime factors to calculate the LCM of 17798 and 17809.

LCM(17798,17809) = 21 × 111 × 8091 × 16191
LCM(17798,17809) = 28814962