Given numbers are 128,378,530,991

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

The LCM of 128,378,530,991 is 6353182080.

Find LCM of 128,378,530,991 with Prime Factorization

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

2 x 64 x 189 x 265 x 991 = 6353182080

Therefore, the lowest common multiple of 128,378,530,991 is 6353182080.

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 378 x 530 x 991 = 25412728320

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

378 : 1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378

530 : 1, 2, 5, 10, 53, 106, 265, 530

991 : 1, 991

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 128,378,530,991, is 1.

Now, the common factors can be found like this.

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

378:2x 3x 3x 3x 7

530:2x 5x 53

991:991

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

2x 2 = 4

Therefore, the value for common factors is 4.

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 = 25412728320/(1x4)

LCM = 25412728320/4

LCM = 6353182080

Thus, we can understand that the LCM of 128,378,530,991 is 6353182080.

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

• LCM of 281, 232, 300, 913
• LCM of 376, 634, 594, 602
• LCM of 864, 548, 481, 604
• LCM of 311, 970, 500, 464
• LCM of 728, 824, 659, 863

1. What is the LCM of 128, 378, 530, 991?

Answer: LCM of 128, 378, 530, 991 is 6353182080.

2. How to calculate the LCM of 128, 378, 530, 991?

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, 378, 530, 991.

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}.