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What is the Least Common Multiple of 18470 and 18480?

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 18470 and 18480 is 34132560.

LCM(18470,18480) = 34132560

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Least Common Multiple of 18470 and 18480 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18470 and 18480, than apply into the LCM equation.

GCF(18470,18480) = 10
LCM(18470,18480) = ( 18470 × 18480) / 10
LCM(18470,18480) = 341325600 / 10
LCM(18470,18480) = 34132560

Least Common Multiple (LCM) of 18470 and 18480 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18470 and 18480. First we will calculate the prime factors of 18470 and 18480.

Prime Factorization of 18470

Prime factors of 18470 are 2, 5, 1847. Prime factorization of 18470 in exponential form is:

18470 = 21 × 51 × 18471

Prime Factorization of 18480

Prime factors of 18480 are 2, 3, 5, 7, 11. Prime factorization of 18480 in exponential form is:

18480 = 24 × 31 × 51 × 71 × 111

Now multiplying the highest exponent prime factors to calculate the LCM of 18470 and 18480.

LCM(18470,18480) = 24 × 51 × 18471 × 31 × 71 × 111
LCM(18470,18480) = 34132560