Given numbers are 438,408,781,838

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

The LCM of 438,408,781,838 is 9746486376.

Find LCM of 438,408,781,838 with Prime Factorization

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

2 x 3 x 73 x 68 x 781 x 419 = 9746486376

Therefore, the lowest common multiple of 438,408,781,838 is 9746486376.

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.

438 x 408 x 781 x 838 = 116957836512

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.

438 : 1, 2, 3, 6, 73, 146, 219, 438

408 : 1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 136, 204, 408

781 : 1, 11, 71, 781

838 : 1, 2, 419, 838

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 438,408,781,838, is 1.

Now, the common factors can be found like this.

438:2x 3x 73

408:2x 2x 2x 3x 17

781:11x 71

838:2x 419

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 = 116957836512/(1x12)

LCM = 116957836512/12

LCM = 9746486376

Thus, we can understand that the LCM of 438,408,781,838 is 9746486376.

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

• LCM of 953, 381, 353, 993
• LCM of 424, 924, 987, 900
• LCM of 537, 863, 298, 255
• LCM of 564, 359, 977, 556
• LCM of 155, 905, 978, 240

1. What is the LCM of 438, 408, 781, 838?

Answer: LCM of 438, 408, 781, 838 is 9746486376.

2. How to calculate the LCM of 438, 408, 781, 838?

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 438, 408, 781, 838.

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}.