Given numbers are 645,731,563

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

The LCM of 645,731,563 is 6173295.

Find LCM of 645,731,563 with Prime Factorization

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

43 x 15 x 17 x 563 = 6173295

Therefore, the lowest common multiple of 645,731,563 is 6173295.

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 731 x 563 = 265451685

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

731 : 1, 17, 43, 731

563 : 1, 563

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 645,731,563, is 1.

Now, the common factors can be found like this.

645:3x 5x 43

731:17x 43

563:563

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 = 265451685/(1x43)

LCM = 265451685/43

LCM = 6173295

Thus, we can understand that the LCM of 645,731,563 is 6173295.

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

• LCM of 852, 809, 391
• LCM of 291, 577, 632
• LCM of 213, 146, 218
• LCM of 994, 220, 243
• LCM of 654, 470, 904

1. What is the LCM of 645, 731, 563?

Answer: LCM of 645, 731, 563 is 6173295.

2. How to calculate the LCM of 645, 731, 563?

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, 731, 563.

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}.