Given numbers are 638,319,830,840

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

The LCM of 638,319,830,840 is 22240680.

Find LCM of 638,319,830,840 with Prime Factorization

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

2 x 5 x 11 x 29 x 1 x 1 x 83 x 84 = 22240680

Therefore, the lowest common multiple of 638,319,830,840 is 22240680.

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 319 x 830 x 840 = 141895538400

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

319 : 1, 11, 29, 319

830 : 1, 2, 5, 10, 83, 166, 415, 830

840 : 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 638,319,830,840, is 1.

Now, the common factors can be found like this.

638:2x 11x 29

319:11x 29

830:2x 5x 83

840:2x 2x 2x 3x 5x 7

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 5x 11x 29 = 6380

Therefore, the value for common factors is 6380.

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 = 141895538400/(1x6380)

LCM = 141895538400/6380

LCM = 22240680

Thus, we can understand that the LCM of 638,319,830,840 is 22240680.

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

• LCM of 261, 113, 880, 399
• LCM of 452, 903, 711, 369
• LCM of 380, 125, 890, 233
• LCM of 444, 946, 334, 245
• LCM of 251, 157, 477, 734

1. What is the LCM of 638, 319, 830, 840?

Answer: LCM of 638, 319, 830, 840 is 22240680.

2. How to calculate the LCM of 638, 319, 830, 840?

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, 319, 830, 840.

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}.