Given numbers are 687,690,199,921

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

The LCM of 687,690,199,921 is 9653304930.

Find LCM of 687,690,199,921 with Prime Factorization

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

3 x 229 x 230 x 199 x 307 = 9653304930

Therefore, the lowest common multiple of 687,690,199,921 is 9653304930.

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 690 x 199 x 921 = 86879744370

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

690 : 1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690

199 : 1, 199

921 : 1, 3, 307, 921

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 687,690,199,921, is 1.

Now, the common factors can be found like this.

687:3x 229

690:2x 3x 5x 23

199:199

921:3x 307

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

3x 3 = 9

Therefore, the value for common factors is 9.

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 = 86879744370/(1x9)

LCM = 86879744370/9

LCM = 9653304930

Thus, we can understand that the LCM of 687,690,199,921 is 9653304930.

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

• LCM of 566, 199, 332, 459
• LCM of 909, 162, 144, 758
• LCM of 408, 416, 847, 656
• LCM of 449, 327, 407, 264
• LCM of 894, 519, 171, 667

1. What is the LCM of 687, 690, 199, 921?

Answer: LCM of 687, 690, 199, 921 is 9653304930.

2. How to calculate the LCM of 687, 690, 199, 921?

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, 690, 199, 921.

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}.