Given numbers are 398,380,991,423

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

The LCM of 398,380,991,423 is 31699374660.

Find LCM of 398,380,991,423 with Prime Factorization

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

2 x 199 x 190 x 991 x 423 = 31699374660

Therefore, the lowest common multiple of 398,380,991,423 is 31699374660.

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 380 x 991 x 423 = 63398749320

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

380 : 1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380

991 : 1, 991

423 : 1, 3, 9, 47, 141, 423

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 398,380,991,423, is 1.

Now, the common factors can be found like this.

398:2x 199

380:2x 2x 5x 19

991:991

423:3x 3x 47

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

2 = 2

Therefore, the value for common factors is 2.

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 = 63398749320/(1x2)

LCM = 63398749320/2

LCM = 31699374660

Thus, we can understand that the LCM of 398,380,991,423 is 31699374660.

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

• LCM of 640, 463, 151, 255
• LCM of 811, 195, 680, 957
• LCM of 552, 593, 773, 807
• LCM of 870, 806, 210, 280
• LCM of 464, 237, 614, 796

1. What is the LCM of 398, 380, 991, 423?

Answer: LCM of 398, 380, 991, 423 is 31699374660.

2. How to calculate the LCM of 398, 380, 991, 423?

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, 380, 991, 423.

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}.