Given numbers are 638,678,398,706

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

The LCM of 638,678,398,706 is 15193161654.

Find LCM of 638,678,398,706 with Prime Factorization

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

2 x 319 x 339 x 199 x 353 = 15193161654

Therefore, the lowest common multiple of 638,678,398,706 is 15193161654.

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 678 x 398 x 706 = 121545293232

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

678 : 1, 2, 3, 6, 113, 226, 339, 678

398 : 1, 2, 199, 398

706 : 1, 2, 353, 706

2 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 638,678,398,706, is 2.

Now, the common factors can be found like this.

638:2x 11x 29

678:2x 3x 113

398:2x 199

706:2x 353

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

2x 2 = 4

Therefore, the value for common factors is 4.

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 = 121545293232/(2x4)

LCM = 121545293232/8

LCM = 15193161654

Thus, we can understand that the LCM of 638,678,398,706 is 15193161654.

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

• LCM of 465, 507, 721, 321
• LCM of 832, 743, 993, 269
• LCM of 572, 442, 635, 139
• LCM of 108, 843, 326, 155
• LCM of 918, 425, 143, 302

1. What is the LCM of 638, 678, 398, 706?

Answer: LCM of 638, 678, 398, 706 is 15193161654.

2. How to calculate the LCM of 638, 678, 398, 706?

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, 678, 398, 706.

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}.