Given numbers are 639,765,936,121,560

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

The LCM of 639,765,936,121,560 is 9568999440.

Find LCM of 639,765,936,121,560 with Prime Factorization

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

2 x 2 x 2 x 3 x 3 x 5 x 71 x 17 x 13 x 121 x 14 = 9568999440

Therefore, the lowest common multiple of 639,765,936,121,560 is 9568999440.

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.

639 x 765 x 936 x 121 x 560 = 31003558185600

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.

639 : 1, 3, 9, 71, 213, 639

765 : 1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765

936 : 1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 156, 234, 312, 468, 936

121 : 1, 11, 121

560 : 1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 639,765,936,121,560, is 1.

Now, the common factors can be found like this.

639:3x 3x 71

765:3x 3x 5x 17

936:2x 2x 2x 3x 3x 13

121:11x 11

560:2x 2x 2x 2x 5x 7

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 2x 3x 3x 3x 3x 5 = 3240

Therefore, the value for common factors is 3240.

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 = 31003558185600/(1x3240)

LCM = 31003558185600/3240

LCM = 9568999440

Thus, we can understand that the LCM of 639,765,936,121,560 is 9568999440.

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

• LCM of 472, 715, 793, 532, 376
• LCM of 996, 209, 141, 310, 629
• LCM of 226, 646, 558, 104, 698
• LCM of 568, 181, 809, 841, 323
• LCM of 382, 280, 332, 853, 216

1. What is the LCM of 639, 765, 936, 121, 560?

Answer: LCM of 639, 765, 936, 121, 560 is 9568999440.

2. How to calculate the LCM of 639, 765, 936, 121, 560?

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 639, 765, 936, 121, 560.

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}.