Given numbers are 720,668,398,780,818

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

The LCM of 720,668,398,780,818 is 127223899920.

Find LCM of 720,668,398,780,818 with Prime Factorization

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

2 x 2 x 3 x 5 x 12 x 167 x 199 x 13 x 409 = 127223899920

Therefore, the lowest common multiple of 720,668,398,780,818 is 127223899920.

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.

720 x 668 x 398 x 780 x 818 = 122134943923200

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.

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

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

398 : 1, 2, 199, 398

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

818 : 1, 2, 409, 818

2 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 720,668,398,780,818, is 2.

Now, the common factors can be found like this.

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

668:2x 2x 167

398:2x 199

780:2x 2x 3x 5x 13

818:2x 409

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 3x 5 = 480

Therefore, the value for common factors is 480.

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 = 122134943923200/(2x480)

LCM = 122134943923200/960

LCM = 127223899920

Thus, we can understand that the LCM of 720,668,398,780,818 is 127223899920.

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

• LCM of 120, 907, 431, 905, 769
• LCM of 190, 693, 511, 944, 951
• LCM of 854, 722, 931, 906, 593
• LCM of 963, 304, 620, 779, 889
• LCM of 125, 698, 745, 406, 825

1. What is the LCM of 720, 668, 398, 780, 818?

Answer: LCM of 720, 668, 398, 780, 818 is 127223899920.

2. How to calculate the LCM of 720, 668, 398, 780, 818?

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 720, 668, 398, 780, 818.

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}.