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What is the Least Common Multiple of 28485 and 28490?

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 28485 and 28490 is 162307530.

LCM(28485,28490) = 162307530

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Least Common Multiple of 28485 and 28490 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28485 and 28490, than apply into the LCM equation.

GCF(28485,28490) = 5
LCM(28485,28490) = ( 28485 × 28490) / 5
LCM(28485,28490) = 811537650 / 5
LCM(28485,28490) = 162307530

Least Common Multiple (LCM) of 28485 and 28490 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28485 and 28490. First we will calculate the prime factors of 28485 and 28490.

Prime Factorization of 28485

Prime factors of 28485 are 3, 5, 211. Prime factorization of 28485 in exponential form is:

28485 = 33 × 51 × 2111

Prime Factorization of 28490

Prime factors of 28490 are 2, 5, 7, 11, 37. Prime factorization of 28490 in exponential form is:

28490 = 21 × 51 × 71 × 111 × 371

Now multiplying the highest exponent prime factors to calculate the LCM of 28485 and 28490.

LCM(28485,28490) = 33 × 51 × 2111 × 21 × 71 × 111 × 371
LCM(28485,28490) = 162307530