Given numbers are 781,778,279,720

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

The LCM of 781,778,279,720 is 6781016880.

Find LCM of 781,778,279,720 with Prime Factorization

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

2 x 3 x 3 x 781 x 389 x 31 x 40 = 6781016880

Therefore, the lowest common multiple of 781,778,279,720 is 6781016880.

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.

781 x 778 x 279 x 720 = 122058303840

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.

781 : 1, 11, 71, 781

778 : 1, 2, 389, 778

279 : 1, 3, 9, 31, 93, 279

720 : 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 781,778,279,720, is 1.

Now, the common factors can be found like this.

781:11x 71

778:2x 389

279:3x 3x 31

720:2x 2x 2x 2x 3x 3x 5

From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.

2x 3x 3 = 18

Therefore, the value for common factors is 18.

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 = 122058303840/(1x18)

LCM = 122058303840/18

LCM = 6781016880

Thus, we can understand that the LCM of 781,778,279,720 is 6781016880.

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

• LCM of 780, 189, 573, 644
• LCM of 328, 830, 954, 376
• LCM of 482, 477, 835, 847
• LCM of 654, 171, 103, 699
• LCM of 157, 799, 610, 427

1. What is the LCM of 781, 778, 279, 720?

Answer: LCM of 781, 778, 279, 720 is 6781016880.

2. How to calculate the LCM of 781, 778, 279, 720?

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 781, 778, 279, 720.

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}.