Given numbers are 638,440,427,585,910

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

The LCM of 638,440,427,585,910 is 637476840.

Find LCM of 638,440,427,585,910 with Prime Factorization

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

2 x 5 x 7 x 11 x 13 x 29 x 4 x 61 x 9 x 1 = 637476840

Therefore, the lowest common multiple of 638,440,427,585,910 is 637476840.

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 440 x 427 x 585 x 910 = 63811431684000

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

440 : 1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440

427 : 1, 7, 61, 427

585 : 1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585

910 : 1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 638,440,427,585,910, is 1.

Now, the common factors can be found like this.

638:2x 11x 29

440:2x 2x 2x 5x 11

427:7x 61

585:3x 3x 5x 13

910:2x 5x 7x 13

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 5x 5x 7x 11x 13 = 100100

Therefore, the value for common factors is 100100.

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 = 63811431684000/(1x100100)

LCM = 63811431684000/100100

LCM = 637476840

Thus, we can understand that the LCM of 638,440,427,585,910 is 637476840.

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

• LCM of 285, 519, 763, 514, 188
• LCM of 792, 925, 540, 125, 834
• LCM of 406, 777, 144, 963, 793
• LCM of 142, 750, 584, 426, 753
• LCM of 231, 739, 130, 253, 281

1. What is the LCM of 638, 440, 427, 585, 910?

Answer: LCM of 638, 440, 427, 585, 910 is 637476840.

2. How to calculate the LCM of 638, 440, 427, 585, 910?

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, 440, 427, 585, 910.

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}.