Given numbers are 638,481,910,660

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

The LCM of 638,481,910,660 is 64444380.

Find LCM of 638,481,910,660 with Prime Factorization

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

2 x 5 x 11 x 13 x 29 x 37 x 7 x 6 = 64444380

Therefore, the lowest common multiple of 638,481,910,660 is 64444380.

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 481 x 910 x 660 = 184310926800

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

481 : 1, 13, 37, 481

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

660 : 1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 638,481,910,660, is 1.

Now, the common factors can be found like this.

638:2x 11x 29

481:13x 37

910:2x 5x 7x 13

660:2x 2x 3x 5x 11

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 11x 13 = 2860

Therefore, the value for common factors is 2860.

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 = 184310926800/(1x2860)

LCM = 184310926800/2860

LCM = 64444380

Thus, we can understand that the LCM of 638,481,910,660 is 64444380.

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

• LCM of 668, 302, 575, 629
• LCM of 841, 263, 165, 604
• LCM of 834, 747, 311, 206
• LCM of 516, 478, 666, 237
• LCM of 791, 765, 565, 242

1. What is the LCM of 638, 481, 910, 660?

Answer: LCM of 638, 481, 910, 660 is 64444380.

2. How to calculate the LCM of 638, 481, 910, 660?

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, 481, 910, 660.

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}.