Given numbers are 638,406,425,747

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

The LCM of 638,406,425,747 is 1417843350.

Find LCM of 638,406,425,747 with Prime Factorization

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

2 x 29 x 11 x 7 x 425 x 747 = 1417843350

Therefore, the lowest common multiple of 638,406,425,747 is 1417843350.

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.

638 x 406 x 425 x 747 = 82234914300

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.

638 : 1, 2, 11, 22, 29, 58, 319, 638

406 : 1, 2, 7, 14, 29, 58, 203, 406

425 : 1, 5, 17, 25, 85, 425

747 : 1, 3, 9, 83, 249, 747

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 638,406,425,747, is 1.

Now, the common factors can be found like this.

638:2x 11x 29

406:2x 7x 29

425:5x 5x 17

747:3x 3x 83

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

2x 29 = 58

Therefore, the value for common factors is 58.

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 = 82234914300/(1x58)

LCM = 82234914300/58

LCM = 1417843350

Thus, we can understand that the LCM of 638,406,425,747 is 1417843350.

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

• LCM of 959, 684, 207, 874
• LCM of 254, 155, 770, 635
• LCM of 387, 433, 455, 428
• LCM of 338, 464, 267, 325
• LCM of 282, 359, 176, 594

1. What is the LCM of 638, 406, 425, 747?

Answer: LCM of 638, 406, 425, 747 is 1417843350.

2. How to calculate the LCM of 638, 406, 425, 747?

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 638, 406, 425, 747.

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}.