Given numbers are 645,685,949,790

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

The LCM of 645,685,949,790 is 13249624830.

Find LCM of 645,685,949,790 with Prime Factorization

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

5 x 129 x 137 x 949 x 158 = 13249624830

Therefore, the lowest common multiple of 645,685,949,790 is 13249624830.

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.

645 x 685 x 949 x 790 = 331240620750

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.

645 : 1, 3, 5, 15, 43, 129, 215, 645

685 : 1, 5, 137, 685

949 : 1, 13, 73, 949

790 : 1, 2, 5, 10, 79, 158, 395, 790

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 645,685,949,790, is 1.

Now, the common factors can be found like this.

645:3x 5x 43

685:5x 137

949:13x 73

790:2x 5x 79

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

5x 5 = 25

Therefore, the value for common factors is 25.

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 = 331240620750/(1x25)

LCM = 331240620750/25

LCM = 13249624830

Thus, we can understand that the LCM of 645,685,949,790 is 13249624830.

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

• LCM of 635, 279, 601, 354
• LCM of 943, 352, 507, 210
• LCM of 705, 213, 804, 210
• LCM of 458, 786, 520, 249
• LCM of 996, 420, 890, 621

1. What is the LCM of 645, 685, 949, 790?

Answer: LCM of 645, 685, 949, 790 is 13249624830.

2. How to calculate the LCM of 645, 685, 949, 790?

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 645, 685, 949, 790.

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}.