A:
Positive:
1 x 250000311 x 22727317 x 14705929 x 86207187 x 13369319 x 7837461 x 5423493 x 5071
Negative:
-1 x -2500003-11 x -227273-17 x -147059-29 x -86207-187 x -13369-319 x -7837-461 x -5423-493 x -5071
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 2,500,003, 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 | 2,500,003 | |
| -1 | -2,500,003 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 2,500,003.
Example:
1 x 2,500,003 = 2,500,003
and
-1 x -2,500,003 = 2,500,003
Notice both answers equal 2,500,003
With that explanation out of the way, let's continue. Next, we take the number 2,500,003 and divide it by 2:
2,500,003 ÷ 2 = 1,250,001.5
If the quotient is a whole number, then 2 and 1,250,001.5 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 | 2,500,003 | |
| -1 | -2,500,003 |
Now, we try dividing 2,500,003 by 3:
2,500,003 ÷ 3 = 833,334.3333
If the quotient is a whole number, then 3 and 833,334.3333 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 | 2,500,003 | |
| -1 | -2,500,003 |
Let's try dividing by 4:
2,500,003 ÷ 4 = 625,000.75
If the quotient is a whole number, then 4 and 625,000.75 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 | 2,500,003 | |
| -1 | 2,500,003 |
If you did it right, you will end up with this table:
| 1 | 11 | 17 | 29 | 187 | 319 | 461 | 493 | 5,071 | 5,423 | 7,837 | 13,369 | 86,207 | 147,059 | 227,273 | 2,500,003 |
| -1 | -11 | -17 | -29 | -187 | -319 | -461 | -493 | -5,071 | -5,423 | -7,837 | -13,369 | -86,207 | -147,059 | -227,273 | -2,500,003 |
Here are some more numbers to try:
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