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What is the Least Common Multiple of 16728 and 16745?

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 16728 and 16745 is 16477080.

LCM(16728,16745) = 16477080

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Least Common Multiple of 16728 and 16745 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 16728 and 16745, than apply into the LCM equation.

GCF(16728,16745) = 17
LCM(16728,16745) = ( 16728 × 16745) / 17
LCM(16728,16745) = 280110360 / 17
LCM(16728,16745) = 16477080

Least Common Multiple (LCM) of 16728 and 16745 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 16728 and 16745. First we will calculate the prime factors of 16728 and 16745.

Prime Factorization of 16728

Prime factors of 16728 are 2, 3, 17, 41. Prime factorization of 16728 in exponential form is:

16728 = 23 × 31 × 171 × 411

Prime Factorization of 16745

Prime factors of 16745 are 5, 17, 197. Prime factorization of 16745 in exponential form is:

16745 = 51 × 171 × 1971

Now multiplying the highest exponent prime factors to calculate the LCM of 16728 and 16745.

LCM(16728,16745) = 23 × 31 × 171 × 411 × 51 × 1971
LCM(16728,16745) = 16477080