Given numbers are 997,363,840,621,391

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

The LCM of 997,363,840,621,391 is 356598146520.

Find LCM of 997,363,840,621,391 with Prime Factorization

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

3 x 23 x 997 x 121 x 280 x 9 x 17 = 356598146520

Therefore, the lowest common multiple of 997,363,840,621,391 is 356598146520.

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.

997 x 363 x 840 x 621 x 391 = 73815816329640

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.

997 : 1, 997

363 : 1, 3, 11, 33, 121, 363

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

621 : 1, 3, 9, 23, 27, 69, 207, 621

391 : 1, 17, 23, 391

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 997,363,840,621,391, is 1.

Now, the common factors can be found like this.

997:997

363:3x 11x 11

840:2x 2x 2x 3x 5x 7

621:3x 3x 3x 23

391:17x 23

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

3x 3x 23 = 207

Therefore, the value for common factors is 207.

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 = 73815816329640/(1x207)

LCM = 73815816329640/207

LCM = 356598146520

Thus, we can understand that the LCM of 997,363,840,621,391 is 356598146520.

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

• LCM of 728, 173, 277, 757, 317
• LCM of 967, 627, 289, 131, 257
• LCM of 336, 754, 507, 690, 322
• LCM of 792, 793, 850, 886, 743
• LCM of 338, 373, 504, 945, 731

1. What is the LCM of 997, 363, 840, 621, 391?

Answer: LCM of 997, 363, 840, 621, 391 is 356598146520.

2. How to calculate the LCM of 997, 363, 840, 621, 391?

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 997, 363, 840, 621, 391.

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}.