Given numbers are 670,730,163,120,780

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

The LCM of 670,730,163,120,780 is 1243683480.

Find LCM of 670,730,163,120,780 with Prime Factorization

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

2 x 2 x 3 x 5 x 67 x 73 x 163 x 2 x 13 = 1243683480

Therefore, the lowest common multiple of 670,730,163,120,780 is 1243683480.

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.

670 x 730 x 163 x 120 x 780 = 7462100880000

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.

670 : 1, 2, 5, 10, 67, 134, 335, 670

730 : 1, 2, 5, 10, 73, 146, 365, 730

163 : 1, 163

120 : 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120

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

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 670,730,163,120,780, is 1.

Now, the common factors can be found like this.

670:2x 5x 67

730:2x 5x 73

163:163

120:2x 2x 2x 3x 5

780:2x 2x 3x 5x 13

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 3x 5x 5x 5 = 6000

Therefore, the value for common factors is 6000.

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 = 7462100880000/(1x6000)

LCM = 7462100880000/6000

LCM = 1243683480

Thus, we can understand that the LCM of 670,730,163,120,780 is 1243683480.

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

• LCM of 820, 307, 299, 906, 319
• LCM of 424, 476, 442, 735, 837
• LCM of 417, 576, 752, 914, 955
• LCM of 514, 411, 241, 262, 261
• LCM of 671, 805, 885, 988, 727

1. What is the LCM of 670, 730, 163, 120, 780?

Answer: LCM of 670, 730, 163, 120, 780 is 1243683480.

2. How to calculate the LCM of 670, 730, 163, 120, 780?

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 670, 730, 163, 120, 780.

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}.