Given numbers are 517,389,221,638

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

The LCM of 517,389,221,638 is 2577866434.

Find LCM of 517,389,221,638 with Prime Factorization

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

11 x 47 x 389 x 221 x 58 = 2577866434

Therefore, the lowest common multiple of 517,389,221,638 is 2577866434.

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.

517 x 389 x 221 x 638 = 28356530774

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.

517 : 1, 11, 47, 517

389 : 1, 389

221 : 1, 13, 17, 221

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

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 517,389,221,638, is 1.

Now, the common factors can be found like this.

517:11x 47

389:389

221:13x 17

638:2x 11x 29

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

11 = 11

Therefore, the value for common factors is 11.

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 = 28356530774/(1x11)

LCM = 28356530774/11

LCM = 2577866434

Thus, we can understand that the LCM of 517,389,221,638 is 2577866434.

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

• LCM of 996, 249, 606, 124
• LCM of 103, 253, 309, 532
• LCM of 838, 124, 505, 365
• LCM of 303, 152, 854, 487
• LCM of 303, 266, 421, 576

1. What is the LCM of 517, 389, 221, 638?

Answer: LCM of 517, 389, 221, 638 is 2577866434.

2. How to calculate the LCM of 517, 389, 221, 638?

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 517, 389, 221, 638.

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}.