A:
Positive:
1 x 2500024317 x 3571463353 x 471702771 x 3521161371 x 673861497 x 5030233763 x 664379491 x 26341
Negative:
-1 x -250002431-7 x -35714633-53 x -4717027-71 x -3521161-371 x -673861-497 x -503023-3763 x -66437-9491 x -26341
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 250,002,431, 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 | 250,002,431 | |
| -1 | -250,002,431 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 250,002,431.
Example:
1 x 250,002,431 = 250,002,431
and
-1 x -250,002,431 = 250,002,431
Notice both answers equal 250,002,431
With that explanation out of the way, let's continue. Next, we take the number 250,002,431 and divide it by 2:
250,002,431 ÷ 2 = 125,001,215.5
If the quotient is a whole number, then 2 and 125,001,215.5 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 | 250,002,431 | |
| -1 | -250,002,431 |
Now, we try dividing 250,002,431 by 3:
250,002,431 ÷ 3 = 83,334,143.6667
If the quotient is a whole number, then 3 and 83,334,143.6667 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 | 250,002,431 | |
| -1 | -250,002,431 |
Let's try dividing by 4:
250,002,431 ÷ 4 = 62,500,607.75
If the quotient is a whole number, then 4 and 62,500,607.75 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 | 250,002,431 | |
| -1 | 250,002,431 |
If you did it right, you will end up with this table:
| 1 | 7 | 53 | 71 | 371 | 497 | 3,763 | 9,491 | 26,341 | 66,437 | 503,023 | 673,861 | 3,521,161 | 4,717,027 | 35,714,633 | 250,002,431 |
| -1 | -7 | -53 | -71 | -371 | -497 | -3,763 | -9,491 | -26,341 | -66,437 | -503,023 | -673,861 | -3,521,161 | -4,717,027 | -35,714,633 | -250,002,431 |
Here are some more numbers to try:
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