Given numbers are 646,22,815

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

The LCM of 646,22,815 is 5791390.

Find LCM of 646,22,815 with Prime Factorization

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

2 x 323 x 11 x 815 = 5791390

Therefore, the lowest common multiple of 646,22,815 is 5791390.

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.

646 x 22 x 815 = 11582780

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.

646 : 1, 2, 17, 19, 34, 38, 323, 646

22 : 1, 2, 11, 22

815 : 1, 5, 163, 815

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 646,22,815, is 1.

Now, the common factors can be found like this.

646:2x 17x 19

22:2x 11

815:5x 163

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

2 = 2

Therefore, the value for common factors is 2.

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 = 11582780/(1x2)

LCM = 11582780/2

LCM = 5791390

Thus, we can understand that the LCM of 646,22,815 is 5791390.

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

• LCM of 772, 85, 114
• LCM of 386, 38, 513
• LCM of 713, 63, 976
• LCM of 547, 19, 375
• LCM of 175, 56, 750

1. What is the LCM of 646, 22, 815?

Answer: LCM of 646, 22, 815 is 5791390.

2. How to calculate the LCM of 646, 22, 815?

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 646, 22, 815.

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}.