Given numbers are 247,278,990,680

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

The LCM of 247,278,990,680 is 2311297560.

Find LCM of 247,278,990,680 with Prime Factorization

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

2 x 5 x 247 x 139 x 99 x 68 = 2311297560

Therefore, the lowest common multiple of 247,278,990,680 is 2311297560.

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.

247 x 278 x 990 x 680 = 46225951200

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.

247 : 1, 13, 19, 247

278 : 1, 2, 139, 278

990 : 1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990

680 : 1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 247,278,990,680, is 1.

Now, the common factors can be found like this.

247:13x 19

278:2x 139

990:2x 3x 3x 5x 11

680:2x 2x 2x 5x 17

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 5 = 20

Therefore, the value for common factors is 20.

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 = 46225951200/(1x20)

LCM = 46225951200/20

LCM = 2311297560

Thus, we can understand that the LCM of 247,278,990,680 is 2311297560.

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

• LCM of 515, 902, 157, 582
• LCM of 480, 917, 421, 937
• LCM of 300, 416, 912, 986
• LCM of 741, 407, 373, 887
• LCM of 853, 723, 399, 950

1. What is the LCM of 247, 278, 990, 680?

Answer: LCM of 247, 278, 990, 680 is 2311297560.

2. How to calculate the LCM of 247, 278, 990, 680?

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 247, 278, 990, 680.

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}.