Given numbers are 640,214,128,293

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

The LCM of 640,214,128,293 is 20064640.

Find LCM of 640,214,128,293 with Prime Factorization

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

2 x 2 x 2 x 2 x 2 x 2 x 2 x 5 x 107 x 1 x 293 = 20064640

Therefore, the lowest common multiple of 640,214,128,293 is 20064640.

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.

640 x 214 x 128 x 293 = 5136547840

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.

640 : 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640

214 : 1, 2, 107, 214

128 : 1, 2, 4, 8, 16, 32, 64, 128

293 : 1, 293

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 640,214,128,293, is 1.

Now, the common factors can be found like this.

640:2x 2x 2x 2x 2x 2x 2x 5

214:2x 107

128:2x 2x 2x 2x 2x 2x 2

293:293

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 2x 2x 2x 2x 2 = 256

Therefore, the value for common factors is 256.

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 = 5136547840/(1x256)

LCM = 5136547840/256

LCM = 20064640

Thus, we can understand that the LCM of 640,214,128,293 is 20064640.

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

• LCM of 576, 405, 531, 507
• LCM of 721, 138, 227, 503
• LCM of 212, 132, 481, 192
• LCM of 536, 877, 707, 727
• LCM of 184, 812, 711, 125

1. What is the LCM of 640, 214, 128, 293?

Answer: LCM of 640, 214, 128, 293 is 20064640.

2. How to calculate the LCM of 640, 214, 128, 293?

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 640, 214, 128, 293.

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}.