Given numbers are 654,132,638,840

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

The LCM of 654,132,638,840 is 29207640.

Find LCM of 654,132,638,840 with Prime Factorization

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

2 x 2 x 3 x 11 x 109 x 1 x 29 x 70 = 29207640

Therefore, the lowest common multiple of 654,132,638,840 is 29207640.

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.

654 x 132 x 638 x 840 = 46264901760

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.

654 : 1, 2, 3, 6, 109, 218, 327, 654

132 : 1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132

638 : 1, 2, 11, 22, 29, 58, 319, 638

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

2 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 654,132,638,840, is 2.

Now, the common factors can be found like this.

654:2x 3x 109

132:2x 2x 3x 11

638:2x 11x 29

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 2x 3x 3x 11 = 792

Therefore, the value for common factors is 792.

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 = 46264901760/(2x792)

LCM = 46264901760/1584

LCM = 29207640

Thus, we can understand that the LCM of 654,132,638,840 is 29207640.

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

• LCM of 120, 239, 522, 292
• LCM of 489, 968, 686, 165
• LCM of 446, 204, 416, 178
• LCM of 971, 594, 393, 400
• LCM of 120, 189, 112, 824

1. What is the LCM of 654, 132, 638, 840?

Answer: LCM of 654, 132, 638, 840 is 29207640.

2. How to calculate the LCM of 654, 132, 638, 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 654, 132, 638, 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}.