Given numbers are 687,740,395,805

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

The LCM of 687,740,395,805 is 6466085220.

Find LCM of 687,740,395,805 with Prime Factorization

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

5 x 687 x 148 x 79 x 161 = 6466085220

Therefore, the lowest common multiple of 687,740,395,805 is 6466085220.

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.

687 x 740 x 395 x 805 = 161652130500

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.

687 : 1, 3, 229, 687

740 : 1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740

395 : 1, 5, 79, 395

805 : 1, 5, 7, 23, 35, 115, 161, 805

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 687,740,395,805, is 1.

Now, the common factors can be found like this.

687:3x 229

740:2x 2x 5x 37

395:5x 79

805:5x 7x 23

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

5x 5 = 25

Therefore, the value for common factors is 25.

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 = 161652130500/(1x25)

LCM = 161652130500/25

LCM = 6466085220

Thus, we can understand that the LCM of 687,740,395,805 is 6466085220.

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

• LCM of 769, 990, 225, 646
• LCM of 294, 435, 460, 193
• LCM of 428, 560, 118, 383
• LCM of 972, 214, 597, 327
• LCM of 775, 115, 433, 166

1. What is the LCM of 687, 740, 395, 805?

Answer: LCM of 687, 740, 395, 805 is 6466085220.

2. How to calculate the LCM of 687, 740, 395, 805?

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 687, 740, 395, 805.

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}.