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What is the Least Common Multiple of 16575 and 16590?

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 16575 and 16590 is 18331950.

LCM(16575,16590) = 18331950

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Least Common Multiple of 16575 and 16590 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 16575 and 16590, than apply into the LCM equation.

GCF(16575,16590) = 15
LCM(16575,16590) = ( 16575 × 16590) / 15
LCM(16575,16590) = 274979250 / 15
LCM(16575,16590) = 18331950

Least Common Multiple (LCM) of 16575 and 16590 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 16575 and 16590. First we will calculate the prime factors of 16575 and 16590.

Prime Factorization of 16575

Prime factors of 16575 are 3, 5, 13, 17. Prime factorization of 16575 in exponential form is:

16575 = 31 × 52 × 131 × 171

Prime Factorization of 16590

Prime factors of 16590 are 2, 3, 5, 7, 79. Prime factorization of 16590 in exponential form is:

16590 = 21 × 31 × 51 × 71 × 791

Now multiplying the highest exponent prime factors to calculate the LCM of 16575 and 16590.

LCM(16575,16590) = 31 × 52 × 131 × 171 × 21 × 71 × 791
LCM(16575,16590) = 18331950