Given numbers are 398,961,280,30

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

The LCM of 398,961,280,30 is 160640760.

Find LCM of 398,961,280,30 with Prime Factorization

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

2 x 5 x 199 x 961 x 28 x 3 = 160640760

Therefore, the lowest common multiple of 398,961,280,30 is 160640760.

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.

398 x 961 x 280 x 30 = 3212815200

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.

398 : 1, 2, 199, 398

961 : 1, 31, 961

280 : 1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280

30 : 1, 2, 3, 5, 6, 10, 15, 30

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 398,961,280,30, is 1.

Now, the common factors can be found like this.

398:2x 199

961:31x 31

280:2x 2x 2x 5x 7

30:2x 3x 5

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 5 = 20

Therefore, the value for common factors is 20.

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 = 3212815200/(1x20)

LCM = 3212815200/20

LCM = 160640760

Thus, we can understand that the LCM of 398,961,280,30 is 160640760.

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

• LCM of 873, 945, 988, 14
• LCM of 359, 754, 107, 76
• LCM of 596, 283, 704, 59
• LCM of 277, 871, 296, 48
• LCM of 540, 169, 503, 29

1. What is the LCM of 398, 961, 280, 30?

Answer: LCM of 398, 961, 280, 30 is 160640760.

2. How to calculate the LCM of 398, 961, 280, 30?

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 398, 961, 280, 30.

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}.