Given numbers are 128,509,860,245

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

The LCM of 128,509,860,245 is 686376320.

Find LCM of 128,509,860,245 with Prime Factorization

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

2 x 2 x 5 x 32 x 509 x 43 x 49 = 686376320

Therefore, the lowest common multiple of 128,509,860,245 is 686376320.

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.

128 x 509 x 860 x 245 = 13727526400

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.

128 : 1, 2, 4, 8, 16, 32, 64, 128

509 : 1, 509

860 : 1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860

245 : 1, 5, 7, 35, 49, 245

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 128,509,860,245, is 1.

Now, the common factors can be found like this.

128:2x 2x 2x 2x 2x 2x 2

509:509

860:2x 2x 5x 43

245:5x 7x 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 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 = 13727526400/(1x20)

LCM = 13727526400/20

LCM = 686376320

Thus, we can understand that the LCM of 128,509,860,245 is 686376320.

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

• LCM of 622, 596, 484, 663
• LCM of 300, 843, 342, 733
• LCM of 475, 300, 753, 233
• LCM of 635, 525, 943, 719
• LCM of 244, 280, 258, 925

1. What is the LCM of 128, 509, 860, 245?

Answer: LCM of 128, 509, 860, 245 is 686376320.

2. How to calculate the LCM of 128, 509, 860, 245?

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 128, 509, 860, 245.

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}.