Given numbers are 668,674,638,406,920

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

The LCM of 668,674,638,406,920 is 115617326440.

Find LCM of 668,674,638,406,920 with Prime Factorization

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

2 x 2 x 29 x 167 x 337 x 11 x 7 x 230 = 115617326440

Therefore, the lowest common multiple of 668,674,638,406,920 is 115617326440.

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.

668 x 674 x 638 x 406 x 920 = 107292878936320

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.

668 : 1, 2, 4, 167, 334, 668

674 : 1, 2, 337, 674

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

406 : 1, 2, 7, 14, 29, 58, 203, 406

920 : 1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920

2 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 668,674,638,406,920, is 2.

Now, the common factors can be found like this.

668:2x 2x 167

674:2x 337

638:2x 11x 29

406:2x 7x 29

920:2x 2x 2x 5x 23

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 2x 29 = 464

Therefore, the value for common factors is 464.

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 = 107292878936320/(2x464)

LCM = 107292878936320/928

LCM = 115617326440

Thus, we can understand that the LCM of 668,674,638,406,920 is 115617326440.

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

• LCM of 118, 726, 873, 369, 776
• LCM of 618, 795, 131, 727, 954
• LCM of 240, 141, 275, 646, 693
• LCM of 828, 733, 604, 415, 526
• LCM of 501, 872, 441, 690, 922

1. What is the LCM of 668, 674, 638, 406, 920?

Answer: LCM of 668, 674, 638, 406, 920 is 115617326440.

2. How to calculate the LCM of 668, 674, 638, 406, 920?

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 668, 674, 638, 406, 920.

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}.