Given numbers are 688,637,726,990

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

The LCM of 688,637,726,990 is 2386303920.

Find LCM of 688,637,726,990 with Prime Factorization

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

2 x 3 x 11 x 344 x 637 x 11 x 15 = 2386303920

Therefore, the lowest common multiple of 688,637,726,990 is 2386303920.

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.

688 x 637 x 726 x 990 = 314992117440

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.

688 : 1, 2, 4, 8, 16, 43, 86, 172, 344, 688

637 : 1, 7, 13, 49, 91, 637

726 : 1, 2, 3, 6, 11, 22, 33, 66, 121, 242, 363, 726

990 : 1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 688,637,726,990, is 1.

Now, the common factors can be found like this.

688:2x 2x 2x 2x 43

637:7x 7x 13

726:2x 3x 11x 11

990:2x 3x 3x 5x 11

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

2x 2x 3x 11 = 132

Therefore, the value for common factors is 132.

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 = 314992117440/(1x132)

LCM = 314992117440/132

LCM = 2386303920

Thus, we can understand that the LCM of 688,637,726,990 is 2386303920.

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

• LCM of 475, 408, 454, 121
• LCM of 381, 661, 869, 816
• LCM of 114, 706, 108, 309
• LCM of 333, 549, 814, 464
• LCM of 989, 316, 783, 334

1. What is the LCM of 688, 637, 726, 990?

Answer: LCM of 688, 637, 726, 990 is 2386303920.

2. How to calculate the LCM of 688, 637, 726, 990?

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 688, 637, 726, 990.

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}.