A:
Positive:
1 x 26326312923 x 1144622331 x 849235961 x 4315789713 x 3692331403 x 1876431891 x 1392196053 x 43493
Negative:
-1 x -263263129-23 x -11446223-31 x -8492359-61 x -4315789-713 x -369233-1403 x -187643-1891 x -139219-6053 x -43493
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 263,263,129, 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 | 263,263,129 | |
| -1 | -263,263,129 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 263,263,129.
Example:
1 x 263,263,129 = 263,263,129
and
-1 x -263,263,129 = 263,263,129
Notice both answers equal 263,263,129
With that explanation out of the way, let's continue. Next, we take the number 263,263,129 and divide it by 2:
263,263,129 ÷ 2 = 131,631,564.5
If the quotient is a whole number, then 2 and 131,631,564.5 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 | 263,263,129 | |
| -1 | -263,263,129 |
Now, we try dividing 263,263,129 by 3:
263,263,129 ÷ 3 = 87,754,376.3333
If the quotient is a whole number, then 3 and 87,754,376.3333 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 | 263,263,129 | |
| -1 | -263,263,129 |
Let's try dividing by 4:
263,263,129 ÷ 4 = 65,815,782.25
If the quotient is a whole number, then 4 and 65,815,782.25 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 | 263,263,129 | |
| -1 | 263,263,129 |
If you did it right, you will end up with this table:
| 1 | 23 | 31 | 61 | 713 | 1,403 | 1,891 | 6,053 | 43,493 | 139,219 | 187,643 | 369,233 | 4,315,789 | 8,492,359 | 11,446,223 | 263,263,129 |
| -1 | -23 | -31 | -61 | -713 | -1,403 | -1,891 | -6,053 | -43,493 | -139,219 | -187,643 | -369,233 | -4,315,789 | -8,492,359 | -11,446,223 | -263,263,129 |
Here are some more numbers to try:
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