A:
Positive:
1 x 865045517 x 1235779317 x 508850349 x 1765399113 x 765527119 x 726929791 x 109361833 x 103847919 x 941291921 x 450315537 x 156236433 x 13447
Negative:
-1 x -86504551-7 x -12357793-17 x -5088503-49 x -1765399-113 x -765527-119 x -726929-791 x -109361-833 x -103847-919 x -94129-1921 x -45031-5537 x -15623-6433 x -13447
Unfortunately, there's not simple formula to identifying all of the factors of a number and it can be a tedious process when trying to identify the divisors of larger numbers. To find the factor combinations of the number 86,504,551, it is easier to work with a table - it's called factoring from the outside in.
We start by creating a table and writing 1 on the left side and then the number we're trying to find the factors for on the right side in a table. Then, below that, write the numbers as a negative as well.
| 1 | 86,504,551 | |
| -1 | -86,504,551 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 86,504,551.
Example:
1 x 86,504,551 = 86,504,551
and
-1 x -86,504,551 = 86,504,551
Notice both answers equal 86,504,551
With that explanation out of the way, let's continue. Next, we take the number 86,504,551 and divide it by 2:
86,504,551 ÷ 2 = 43,252,275.5
If the quotient is a whole number, then 2 and 43,252,275.5 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 86,504,551 | |
| -1 | -86,504,551 |
Now, we try dividing 86,504,551 by 3:
86,504,551 ÷ 3 = 28,834,850.3333
If the quotient is a whole number, then 3 and 28,834,850.3333 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 86,504,551 | |
| -1 | -86,504,551 |
Let's try dividing by 4:
86,504,551 ÷ 4 = 21,626,137.75
If the quotient is a whole number, then 4 and 21,626,137.75 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 86,504,551 | |
| -1 | 86,504,551 |
If you did it right, you will end up with this table:
| 1 | 7 | 17 | 49 | 113 | 119 | 791 | 833 | 919 | 1,921 | 5,537 | 6,433 | 13,447 | 15,623 | 45,031 | 94,129 | 103,847 | 109,361 | 726,929 | 765,527 | 1,765,399 | 5,088,503 | 12,357,793 | 86,504,551 |
| -1 | -7 | -17 | -49 | -113 | -119 | -791 | -833 | -919 | -1,921 | -5,537 | -6,433 | -13,447 | -15,623 | -45,031 | -94,129 | -103,847 | -109,361 | -726,929 | -765,527 | -1,765,399 | -5,088,503 | -12,357,793 | -86,504,551 |
Here are some more numbers to try:
Try the factor calculator