Given numbers are 631,581,403,390

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

The LCM of 631,581,403,390 is 4432326990.

Find LCM of 631,581,403,390 with Prime Factorization

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

13 x 631 x 581 x 31 x 30 = 4432326990

Therefore, the lowest common multiple of 631,581,403,390 is 4432326990.

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.

631 x 581 x 403 x 390 = 57620250870

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.

631 : 1, 631

581 : 1, 7, 83, 581

403 : 1, 13, 31, 403

390 : 1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 631,581,403,390, is 1.

Now, the common factors can be found like this.

631:631

581:7x 83

403:13x 31

390:2x 3x 5x 13

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

13 = 13

Therefore, the value for common factors is 13.

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 = 57620250870/(1x13)

LCM = 57620250870/13

LCM = 4432326990

Thus, we can understand that the LCM of 631,581,403,390 is 4432326990.

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

• LCM of 267, 978, 863, 734
• LCM of 503, 670, 757, 779
• LCM of 204, 451, 749, 597
• LCM of 174, 288, 515, 130
• LCM of 742, 713, 772, 682

1. What is the LCM of 631, 581, 403, 390?

Answer: LCM of 631, 581, 403, 390 is 4432326990.

2. How to calculate the LCM of 631, 581, 403, 390?

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 631, 581, 403, 390.

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}.