Given numbers are 644,691,340,478

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

The LCM of 644,691,340,478 is 9040256260.

Find LCM of 644,691,340,478 with Prime Factorization

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

2 x 2 x 161 x 691 x 85 x 239 = 9040256260

Therefore, the lowest common multiple of 644,691,340,478 is 9040256260.

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.

644 x 691 x 340 x 478 = 72322050080

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.

644 : 1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644

691 : 1, 691

340 : 1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340

478 : 1, 2, 239, 478

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 644,691,340,478, is 1.

Now, the common factors can be found like this.

644:2x 2x 7x 23

691:691

340:2x 2x 5x 17

478:2x 239

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

2x 2x 2 = 8

Therefore, the value for common factors is 8.

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 = 72322050080/(1x8)

LCM = 72322050080/8

LCM = 9040256260

Thus, we can understand that the LCM of 644,691,340,478 is 9040256260.

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

• LCM of 258, 118, 785, 271
• LCM of 368, 266, 111, 444
• LCM of 656, 622, 367, 762
• LCM of 867, 554, 475, 186
• LCM of 982, 702, 584, 275

1. What is the LCM of 644, 691, 340, 478?

Answer: LCM of 644, 691, 340, 478 is 9040256260.

2. How to calculate the LCM of 644, 691, 340, 478?

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 644, 691, 340, 478.

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}.