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What is the Least Common Multiple of 18902 and 18916?

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 18902 and 18916 is 178775116.

LCM(18902,18916) = 178775116

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Least Common Multiple of 18902 and 18916 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18902 and 18916, than apply into the LCM equation.

GCF(18902,18916) = 2
LCM(18902,18916) = ( 18902 × 18916) / 2
LCM(18902,18916) = 357550232 / 2
LCM(18902,18916) = 178775116

Least Common Multiple (LCM) of 18902 and 18916 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18902 and 18916. First we will calculate the prime factors of 18902 and 18916.

Prime Factorization of 18902

Prime factors of 18902 are 2, 13, 727. Prime factorization of 18902 in exponential form is:

18902 = 21 × 131 × 7271

Prime Factorization of 18916

Prime factors of 18916 are 2, 4729. Prime factorization of 18916 in exponential form is:

18916 = 22 × 47291

Now multiplying the highest exponent prime factors to calculate the LCM of 18902 and 18916.

LCM(18902,18916) = 22 × 131 × 7271 × 47291
LCM(18902,18916) = 178775116