Given numbers are 670,390,810,860

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

The LCM of 670,390,810,860 is 60673860.

Find LCM of 670,390,810,860 with Prime Factorization

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

2 x 3 x 5 x 67 x 13 x 27 x 86 = 60673860

Therefore, the lowest common multiple of 670,390,810,860 is 60673860.

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 390 x 810 x 860 = 182021580000

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

390 : 1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390

810 : 1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810

860 : 1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860

10 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 670,390,810,860, is 10.

Now, the common factors can be found like this.

670:2x 5x 67

390:2x 3x 5x 13

810:2x 3x 3x 3x 3x 5

860:2x 2x 5x 43

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 3x 5x 5 = 300

Therefore, the value for common factors is 300.

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 = 182021580000/(10x300)

LCM = 182021580000/3000

LCM = 60673860

Thus, we can understand that the LCM of 670,390,810,860 is 60673860.

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

• LCM of 123, 886, 117, 833
• LCM of 709, 602, 800, 654
• LCM of 531, 965, 490, 423
• LCM of 392, 231, 827, 519
• LCM of 651, 123, 751, 385

1. What is the LCM of 670, 390, 810, 860?

Answer: LCM of 670, 390, 810, 860 is 60673860.

2. How to calculate the LCM of 670, 390, 810, 860?

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, 390, 810, 860.

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}.