Given numbers are 438,634,432,205,646

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

The LCM of 438,634,432,205,646 is 661945528080.

Find LCM of 438,634,432,205,646 with Prime Factorization

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

2 x 3 x 73 x 317 x 72 x 205 x 323 = 661945528080

Therefore, the lowest common multiple of 438,634,432,205,646 is 661945528080.

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.

438 x 634 x 432 x 205 x 646 = 15886692673920

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.

438 : 1, 2, 3, 6, 73, 146, 219, 438

634 : 1, 2, 317, 634

432 : 1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 108, 144, 216, 432

205 : 1, 5, 41, 205

646 : 1, 2, 17, 19, 34, 38, 323, 646

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 438,634,432,205,646, is 1.

Now, the common factors can be found like this.

438:2x 3x 73

634:2x 317

432:2x 2x 2x 2x 3x 3x 3

205:5x 41

646:2x 17x 19

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 2x 3 = 24

Therefore, the value for common factors is 24.

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 = 15886692673920/(1x24)

LCM = 15886692673920/24

LCM = 661945528080

Thus, we can understand that the LCM of 438,634,432,205,646 is 661945528080.

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

• LCM of 299, 343, 301, 957, 641
• LCM of 941, 897, 607, 997, 289
• LCM of 554, 382, 274, 106, 920
• LCM of 422, 373, 120, 578, 945
• LCM of 830, 822, 896, 590, 885

1. What is the LCM of 438, 634, 432, 205, 646?

Answer: LCM of 438, 634, 432, 205, 646 is 661945528080.

2. How to calculate the LCM of 438, 634, 432, 205, 646?

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 438, 634, 432, 205, 646.

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}.