Given numbers are 638,203,631,407

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

The LCM of 638,203,631,407 is 104267702.

Find LCM of 638,203,631,407 with Prime Factorization

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

11 x 29 x 2 x 7 x 631 x 37 = 104267702

Therefore, the lowest common multiple of 638,203,631,407 is 104267702.

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 203 x 631 x 407 = 33261396938

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

203 : 1, 7, 29, 203

631 : 1, 631

407 : 1, 11, 37, 407

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 638,203,631,407, is 1.

Now, the common factors can be found like this.

638:2x 11x 29

203:7x 29

631:631

407:11x 37

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

11x 29 = 319

Therefore, the value for common factors is 319.

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 = 33261396938/(1x319)

LCM = 33261396938/319

LCM = 104267702

Thus, we can understand that the LCM of 638,203,631,407 is 104267702.

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

• LCM of 525, 743, 114, 733
• LCM of 139, 549, 896, 113
• LCM of 217, 599, 473, 389
• LCM of 437, 606, 849, 540
• LCM of 468, 665, 374, 414

1. What is the LCM of 638, 203, 631, 407?

Answer: LCM of 638, 203, 631, 407 is 104267702.

2. How to calculate the LCM of 638, 203, 631, 407?

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, 203, 631, 407.

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}.