Given numbers are 645,323,772,440

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

The LCM of 645,323,772,440 is 3538361640.

Find LCM of 645,323,772,440 with Prime Factorization

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

2 x 2 x 5 x 129 x 323 x 193 x 22 = 3538361640

Therefore, the lowest common multiple of 645,323,772,440 is 3538361640.

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 323 x 772 x 440 = 70767232800

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

323 : 1, 17, 19, 323

772 : 1, 2, 4, 193, 386, 772

440 : 1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 645,323,772,440, is 1.

Now, the common factors can be found like this.

645:3x 5x 43

323:17x 19

772:2x 2x 193

440:2x 2x 2x 5x 11

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 5 = 20

Therefore, the value for common factors is 20.

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 = 70767232800/(1x20)

LCM = 70767232800/20

LCM = 3538361640

Thus, we can understand that the LCM of 645,323,772,440 is 3538361640.

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

• LCM of 213, 162, 162, 141
• LCM of 410, 103, 704, 993
• LCM of 377, 513, 892, 726
• LCM of 702, 145, 267, 106
• LCM of 887, 705, 695, 322

1. What is the LCM of 645, 323, 772, 440?

Answer: LCM of 645, 323, 772, 440 is 3538361640.

2. How to calculate the LCM of 645, 323, 772, 440?

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, 323, 772, 440.

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}.