Given numbers are 638,790,491,284

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

The LCM of 638,790,491,284 is 17570641220.

Find LCM of 638,790,491,284 with Prime Factorization

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

2 x 319 x 395 x 491 x 142 = 17570641220

Therefore, the lowest common multiple of 638,790,491,284 is 17570641220.

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.

638 x 790 x 491 x 284 = 70282564880

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.

638 : 1, 2, 11, 22, 29, 58, 319, 638

790 : 1, 2, 5, 10, 79, 158, 395, 790

491 : 1, 491

284 : 1, 2, 4, 71, 142, 284

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 638,790,491,284, is 1.

Now, the common factors can be found like this.

638:2x 11x 29

790:2x 5x 79

491:491

284:2x 2x 71

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

2x 2 = 4

Therefore, the value for common factors is 4.

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 = 70282564880/(1x4)

LCM = 70282564880/4

LCM = 17570641220

Thus, we can understand that the LCM of 638,790,491,284 is 17570641220.

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

• LCM of 346, 261, 706, 758
• LCM of 249, 501, 177, 435
• LCM of 962, 352, 828, 138
• LCM of 937, 323, 997, 689
• LCM of 357, 153, 875, 999

1. What is the LCM of 638, 790, 491, 284?

Answer: LCM of 638, 790, 491, 284 is 17570641220.

2. How to calculate the LCM of 638, 790, 491, 284?

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 638, 790, 491, 284.

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}.