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What is the Least Common Multiple of 16740 and 16748?

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 16740 and 16748 is 70090380.

LCM(16740,16748) = 70090380

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Least Common Multiple of 16740 and 16748 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 16740 and 16748, than apply into the LCM equation.

GCF(16740,16748) = 4
LCM(16740,16748) = ( 16740 × 16748) / 4
LCM(16740,16748) = 280361520 / 4
LCM(16740,16748) = 70090380

Least Common Multiple (LCM) of 16740 and 16748 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 16740 and 16748. First we will calculate the prime factors of 16740 and 16748.

Prime Factorization of 16740

Prime factors of 16740 are 2, 3, 5, 31. Prime factorization of 16740 in exponential form is:

16740 = 22 × 33 × 51 × 311

Prime Factorization of 16748

Prime factors of 16748 are 2, 53, 79. Prime factorization of 16748 in exponential form is:

16748 = 22 × 531 × 791

Now multiplying the highest exponent prime factors to calculate the LCM of 16740 and 16748.

LCM(16740,16748) = 22 × 33 × 51 × 311 × 531 × 791
LCM(16740,16748) = 70090380