Given numbers are 638,127,821,381

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

The LCM of 638,127,821,381 is 199567038.

Find LCM of 638,127,821,381 with Prime Factorization

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

127 x 638 x 1 x 821 x 3 = 199567038

Therefore, the lowest common multiple of 638,127,821,381 is 199567038.

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 127 x 821 x 381 = 25345013826

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

127 : 1, 127

821 : 1, 821

381 : 1, 3, 127, 381

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 638,127,821,381, is 1.

Now, the common factors can be found like this.

638:2x 11x 29

127:127

821:821

381:3x 127

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

127 = 127

Therefore, the value for common factors is 127.

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 = 25345013826/(1x127)

LCM = 25345013826/127

LCM = 199567038

Thus, we can understand that the LCM of 638,127,821,381 is 199567038.

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

• LCM of 934, 667, 193, 749
• LCM of 223, 587, 975, 737
• LCM of 137, 829, 877, 536
• LCM of 556, 411, 395, 463
• LCM of 867, 475, 872, 822

1. What is the LCM of 638, 127, 821, 381?

Answer: LCM of 638, 127, 821, 381 is 199567038.

2. How to calculate the LCM of 638, 127, 821, 381?

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, 127, 821, 381.

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}.