Given numbers are 643,26,856

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

The LCM of 643,26,856 is 7155304.

Find LCM of 643,26,856 with Prime Factorization

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

2 x 643 x 13 x 428 = 7155304

Therefore, the lowest common multiple of 643,26,856 is 7155304.

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.

643 x 26 x 856 = 14310608

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.

643 : 1, 643

26 : 1, 2, 13, 26

856 : 1, 2, 4, 8, 107, 214, 428, 856

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 643,26,856, is 1.

Now, the common factors can be found like this.

643:643

26:2x 13

856:2x 2x 2x 107

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 = 14310608/(1x2)

LCM = 14310608/2

LCM = 7155304

Thus, we can understand that the LCM of 643,26,856 is 7155304.

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

• LCM of 966, 49, 300
• LCM of 589, 32, 860
• LCM of 468, 51, 400
• LCM of 911, 13, 317
• LCM of 498, 78, 487

1. What is the LCM of 643, 26, 856?

Answer: LCM of 643, 26, 856 is 7155304.

2. How to calculate the LCM of 643, 26, 856?

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 643, 26, 856.

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}.