Given numbers are 642,638,404,127

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

The LCM of 642,638,404,127 is 5253887892.

Find LCM of 642,638,404,127 with Prime Factorization

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

2 x 321 x 319 x 202 x 127 = 5253887892

Therefore, the lowest common multiple of 642,638,404,127 is 5253887892.

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.

642 x 638 x 404 x 127 = 21015551568

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.

642 : 1, 2, 3, 6, 107, 214, 321, 642

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

404 : 1, 2, 4, 101, 202, 404

127 : 1, 127

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 642,638,404,127, is 1.

Now, the common factors can be found like this.

642:2x 3x 107

638:2x 11x 29

404:2x 2x 101

127:127

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 = 21015551568/(1x4)

LCM = 21015551568/4

LCM = 5253887892

Thus, we can understand that the LCM of 642,638,404,127 is 5253887892.

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

• LCM of 667, 270, 146, 834
• LCM of 400, 934, 554, 770
• LCM of 885, 768, 241, 464
• LCM of 914, 674, 730, 644
• LCM of 178, 929, 670, 897

1. What is the LCM of 642, 638, 404, 127?

Answer: LCM of 642, 638, 404, 127 is 5253887892.

2. How to calculate the LCM of 642, 638, 404, 127?

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 642, 638, 404, 127.

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}.