Given numbers are 991,538,978,805

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

The LCM of 991,538,978,805 is 209874980910.

Find LCM of 991,538,978,805 with Prime Factorization

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

2 x 991 x 269 x 489 x 805 = 209874980910

Therefore, the lowest common multiple of 991,538,978,805 is 209874980910.

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.

991 x 538 x 978 x 805 = 419749961820

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.

991 : 1, 991

538 : 1, 2, 269, 538

978 : 1, 2, 3, 6, 163, 326, 489, 978

805 : 1, 5, 7, 23, 35, 115, 161, 805

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 991,538,978,805, is 1.

Now, the common factors can be found like this.

991:991

538:2x 269

978:2x 3x 163

805:5x 7x 23

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 = 419749961820/(1x2)

LCM = 419749961820/2

LCM = 209874980910

Thus, we can understand that the LCM of 991,538,978,805 is 209874980910.

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

• LCM of 670, 876, 982, 257
• LCM of 358, 297, 413, 878
• LCM of 348, 136, 928, 753
• LCM of 606, 777, 981, 373
• LCM of 713, 116, 542, 892

1. What is the LCM of 991, 538, 978, 805?

Answer: LCM of 991, 538, 978, 805 is 209874980910.

2. How to calculate the LCM of 991, 538, 978, 805?

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 991, 538, 978, 805.

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}.