Given numbers are 645,344,187,257

The least common multiple of numbers can be find using the prime factorization method or LCM formula.

The LCM of 645,344,187,257 is 247984440.

Find LCM of 645,344,187,257 with Prime Factorization

Multiply the prime numbers at the bottom and the left side.

43 x 15 x 8 x 187 x 257 = 247984440

Therefore, the lowest common multiple of 645,344,187,257 is 247984440.

LCM formula is LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}

Firstly, we have to find the product of all the numbers.

645 x 344 x 187 x 257 = 10663330920

Then, let us find the GCF of these five numbers. To do so, we have to list down the factors for each number and choose the highest factor that is in all of the lists.

645 : 1, 3, 5, 15, 43, 129, 215, 645

344 : 1, 2, 4, 8, 43, 86, 172, 344

187 : 1, 11, 17, 187

257 : 1, 257

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 645,344,187,257, is 1.

Now, the common factors can be found like this.

645:3x 5x 43

344:2x 2x 2x 43

187:11x 17

257:257

From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.

43 = 43

Therefore, the value for common factors is 43.

Now that we have all the elements of the formula, we can plug them in to calculate the LCM.

LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}

LCM = 10663330920/(1x43)

LCM = 10663330920/43

LCM = 247984440

Thus, we can understand that the LCM of 645,344,187,257 is 247984440.

Here are some samples of LCM of two or more Numbers calculations.

• LCM of 267, 160, 717, 266
• LCM of 506, 845, 732, 535
• LCM of 495, 571, 871, 816
• LCM of 861, 702, 610, 274
• LCM of 826, 766, 198, 410

1. What is the LCM of 645, 344, 187, 257?

Answer: LCM of 645, 344, 187, 257 is 247984440.

2. How to calculate the LCM of 645, 344, 187, 257?

The LCM can be found using two methods. You can either use the LCM formula or the prime factorization method to calculate the LCM of 645, 344, 187, 257.

3. What is the LCM formula?

The LCM formula is LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}.