Given numbers are 640,589,716,638

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

The LCM of 640,589,716,638 is 21524792960.

Find LCM of 640,589,716,638 with Prime Factorization

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

2 x 2 x 160 x 589 x 179 x 319 = 21524792960

Therefore, the lowest common multiple of 640,589,716,638 is 21524792960.

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.

640 x 589 x 716 x 638 = 172198343680

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.

640 : 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640

589 : 1, 19, 31, 589

716 : 1, 2, 4, 179, 358, 716

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

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 640,589,716,638, is 1.

Now, the common factors can be found like this.

640:2x 2x 2x 2x 2x 2x 2x 5

589:19x 31

716:2x 2x 179

638:2x 11x 29

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

2x 2x 2 = 8

Therefore, the value for common factors is 8.

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 = 172198343680/(1x8)

LCM = 172198343680/8

LCM = 21524792960

Thus, we can understand that the LCM of 640,589,716,638 is 21524792960.

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

• LCM of 798, 952, 528, 870
• LCM of 850, 602, 887, 971
• LCM of 366, 919, 501, 648
• LCM of 167, 980, 404, 664
• LCM of 949, 598, 698, 268

1. What is the LCM of 640, 589, 716, 638?

Answer: LCM of 640, 589, 716, 638 is 21524792960.

2. How to calculate the LCM of 640, 589, 716, 638?

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 640, 589, 716, 638.

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}.