Given numbers are 678,210,638,442

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

The LCM of 678,210,638,442 is 1672941270.

Find LCM of 678,210,638,442 with Prime Factorization

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

2 x 3 x 113 x 35 x 319 x 221 = 1672941270

Therefore, the lowest common multiple of 678,210,638,442 is 1672941270.

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.

678 x 210 x 638 x 442 = 40150590480

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.

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

210 : 1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210

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

442 : 1, 2, 13, 17, 26, 34, 221, 442

2 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 678,210,638,442, is 2.

Now, the common factors can be found like this.

678:2x 3x 113

210:2x 3x 5x 7

638:2x 11x 29

442:2x 13x 17

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 3 = 12

Therefore, the value for common factors is 12.

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 = 40150590480/(2x12)

LCM = 40150590480/24

LCM = 1672941270

Thus, we can understand that the LCM of 678,210,638,442 is 1672941270.

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

• LCM of 152, 693, 404, 907
• LCM of 718, 724, 924, 117
• LCM of 409, 422, 220, 679
• LCM of 605, 280, 364, 351
• LCM of 592, 826, 748, 624

1. What is the LCM of 678, 210, 638, 442?

Answer: LCM of 678, 210, 638, 442 is 1672941270.

2. How to calculate the LCM of 678, 210, 638, 442?

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 678, 210, 638, 442.

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}.