Given numbers are 840,397,639,402,280

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

The LCM of 840,397,639,402,280 is 4759093080.

Find LCM of 840,397,639,402,280 with Prime Factorization

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

2 x 2 x 2 x 3 x 5 x 7 x 1 x 397 x 213 x 67 x 1 = 4759093080

Therefore, the lowest common multiple of 840,397,639,402,280 is 4759093080.

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.

840 x 397 x 639 x 402 x 280 = 23985829123200

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.

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

397 : 1, 397

639 : 1, 3, 9, 71, 213, 639

402 : 1, 2, 3, 6, 67, 134, 201, 402

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

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 840,397,639,402,280, is 1.

Now, the common factors can be found like this.

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

397:397

639:3x 3x 71

402:2x 3x 67

280:2x 2x 2x 5x 7

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 2x 2x 3x 3x 5x 7 = 5040

Therefore, the value for common factors is 5040.

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 = 23985829123200/(1x5040)

LCM = 23985829123200/5040

LCM = 4759093080

Thus, we can understand that the LCM of 840,397,639,402,280 is 4759093080.

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

• LCM of 950, 264, 152, 202, 410
• LCM of 648, 148, 255, 585, 280
• LCM of 161, 337, 435, 574, 765
• LCM of 585, 684, 605, 959, 684
• LCM of 505, 227, 398, 939, 443

1. What is the LCM of 840, 397, 639, 402, 280?

Answer: LCM of 840, 397, 639, 402, 280 is 4759093080.

2. How to calculate the LCM of 840, 397, 639, 402, 280?

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 840, 397, 639, 402, 280.

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}.