A:
Positive:
1 x 867402055 x 1734804117 x 510236585 x 1020473331 x 2620551655 x 524113083 x 281355627 x 15415
Negative:
-1 x -86740205-5 x -17348041-17 x -5102365-85 x -1020473-331 x -262055-1655 x -52411-3083 x -28135-5627 x -15415
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 86,740,205, 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 | 86,740,205 | |
| -1 | -86,740,205 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 86,740,205.
Example:
1 x 86,740,205 = 86,740,205
and
-1 x -86,740,205 = 86,740,205
Notice both answers equal 86,740,205
With that explanation out of the way, let's continue. Next, we take the number 86,740,205 and divide it by 2:
86,740,205 ÷ 2 = 43,370,102.5
If the quotient is a whole number, then 2 and 43,370,102.5 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 | 86,740,205 | |
| -1 | -86,740,205 |
Now, we try dividing 86,740,205 by 3:
86,740,205 ÷ 3 = 28,913,401.6667
If the quotient is a whole number, then 3 and 28,913,401.6667 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 | 86,740,205 | |
| -1 | -86,740,205 |
Let's try dividing by 4:
86,740,205 ÷ 4 = 21,685,051.25
If the quotient is a whole number, then 4 and 21,685,051.25 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 | 86,740,205 | |
| -1 | 86,740,205 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 85 | 331 | 1,655 | 3,083 | 5,627 | 15,415 | 28,135 | 52,411 | 262,055 | 1,020,473 | 5,102,365 | 17,348,041 | 86,740,205 |
| -1 | -5 | -17 | -85 | -331 | -1,655 | -3,083 | -5,627 | -15,415 | -28,135 | -52,411 | -262,055 | -1,020,473 | -5,102,365 | -17,348,041 | -86,740,205 |
Here are some more numbers to try:
Try the factor calculator