Given numbers are 699,21,686

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

The LCM of 699,21,686 is 479514.

Find LCM of 699,21,686 with Prime Factorization

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

3 x 7 x 233 x 1 x 98 = 479514

Therefore, the lowest common multiple of 699,21,686 is 479514.

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.

699 x 21 x 686 = 10069794

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.

699 : 1, 3, 233, 699

21 : 1, 3, 7, 21

686 : 1, 2, 7, 14, 49, 98, 343, 686

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 699,21,686, is 1.

Now, the common factors can be found like this.

699:3x 233

21:3x 7

686:2x 7x 7x 7

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

3x 7 = 21

Therefore, the value for common factors is 21.

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 = 10069794/(1x21)

LCM = 10069794/21

LCM = 479514

Thus, we can understand that the LCM of 699,21,686 is 479514.

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

• LCM of 702, 27, 258
• LCM of 781, 81, 141
• LCM of 350, 67, 126
• LCM of 758, 53, 398
• LCM of 815, 49, 758

1. What is the LCM of 699, 21, 686?

Answer: LCM of 699, 21, 686 is 479514.

2. How to calculate the LCM of 699, 21, 686?

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 699, 21, 686.

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}.