Given numbers are 638,651,407,142

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

The LCM of 638,651,407,142 is 1091092926.

Find LCM of 638,651,407,142 with Prime Factorization

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

2 x 11 x 29 x 651 x 37 x 71 = 1091092926

Therefore, the lowest common multiple of 638,651,407,142 is 1091092926.

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 651 x 407 x 142 = 24004044372

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

651 : 1, 3, 7, 21, 31, 93, 217, 651

407 : 1, 11, 37, 407

142 : 1, 2, 71, 142

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 638,651,407,142, is 1.

Now, the common factors can be found like this.

638:2x 11x 29

651:3x 7x 31

407:11x 37

142:2x 71

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

2x 11 = 22

Therefore, the value for common factors is 22.

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 = 24004044372/(1x22)

LCM = 24004044372/22

LCM = 1091092926

Thus, we can understand that the LCM of 638,651,407,142 is 1091092926.

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

• LCM of 212, 436, 902, 944
• LCM of 839, 884, 689, 933
• LCM of 997, 161, 422, 588
• LCM of 854, 708, 559, 236
• LCM of 653, 785, 542, 853

1. What is the LCM of 638, 651, 407, 142?

Answer: LCM of 638, 651, 407, 142 is 1091092926.

2. How to calculate the LCM of 638, 651, 407, 142?

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, 651, 407, 142.

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}.