Given numbers are 21,909,691

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

The LCM of 21,909,691 is 4396833.

Find LCM of 21,909,691 with Prime Factorization

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

3 x 7 x 303 x 691 = 4396833

Therefore, the lowest common multiple of 21,909,691 is 4396833.

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.

21 x 909 x 691 = 13190499

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.

21 : 1, 3, 7, 21

909 : 1, 3, 9, 101, 303, 909

691 : 1, 691

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 21,909,691, is 1.

Now, the common factors can be found like this.

21:3x 7

909:3x 3x 101

691:691

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

3 = 3

Therefore, the value for common factors is 3.

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 = 13190499/(1x3)

LCM = 13190499/3

LCM = 4396833

Thus, we can understand that the LCM of 21,909,691 is 4396833.

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

• LCM of 93, 952, 846
• LCM of 54, 350, 862
• LCM of 84, 547, 143
• LCM of 71, 156, 588
• LCM of 71, 528, 485

1. What is the LCM of 21, 909, 691?

Answer: LCM of 21, 909, 691 is 4396833.

2. How to calculate the LCM of 21, 909, 691?

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 21, 909, 691.

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}.