Given numbers are 780,372,984,660,821

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

The LCM of 780,372,984,660,821 is 17906305560.

Find LCM of 780,372,984,660,821 with Prime Factorization

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

2 x 2 x 3 x 5 x 13 x 31 x 82 x 11 x 821 = 17906305560

Therefore, the lowest common multiple of 780,372,984,660,821 is 17906305560.

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.

780 x 372 x 984 x 660 x 821 = 154710480038400

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.

780 : 1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780

372 : 1, 2, 3, 4, 6, 12, 31, 62, 93, 124, 186, 372

984 : 1, 2, 3, 4, 6, 8, 12, 24, 41, 82, 123, 164, 246, 328, 492, 984

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

821 : 1, 821

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 780,372,984,660,821, is 1.

Now, the common factors can be found like this.

780:2x 2x 3x 5x 13

372:2x 2x 3x 31

984:2x 2x 2x 3x 41

660:2x 2x 3x 5x 11

821:821

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 2x 2x 3x 3x 3x 5 = 8640

Therefore, the value for common factors is 8640.

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 = 154710480038400/(1x8640)

LCM = 154710480038400/8640

LCM = 17906305560

Thus, we can understand that the LCM of 780,372,984,660,821 is 17906305560.

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

• LCM of 557, 985, 714, 234, 786
• LCM of 391, 704, 207, 829, 877
• LCM of 207, 870, 427, 825, 934
• LCM of 137, 239, 358, 496, 818
• LCM of 685, 676, 364, 132, 870

1. What is the LCM of 780, 372, 984, 660, 821?

Answer: LCM of 780, 372, 984, 660, 821 is 17906305560.

2. How to calculate the LCM of 780, 372, 984, 660, 821?

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 780, 372, 984, 660, 821.

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}.