A:
Positive:
1 x 2517387741 x 61399743 x 585439109 x 230953131 x 1921671763 x 142794469 x 56334687 x 5371
Negative:
-1 x -25173877-41 x -613997-43 x -585439-109 x -230953-131 x -192167-1763 x -14279-4469 x -5633-4687 x -5371
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 25,173,877, 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 | 25,173,877 | |
| -1 | -25,173,877 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 25,173,877.
Example:
1 x 25,173,877 = 25,173,877
and
-1 x -25,173,877 = 25,173,877
Notice both answers equal 25,173,877
With that explanation out of the way, let's continue. Next, we take the number 25,173,877 and divide it by 2:
25,173,877 ÷ 2 = 12,586,938.5
If the quotient is a whole number, then 2 and 12,586,938.5 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 | 25,173,877 | |
| -1 | -25,173,877 |
Now, we try dividing 25,173,877 by 3:
25,173,877 ÷ 3 = 8,391,292.3333
If the quotient is a whole number, then 3 and 8,391,292.3333 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 | 25,173,877 | |
| -1 | -25,173,877 |
Let's try dividing by 4:
25,173,877 ÷ 4 = 6,293,469.25
If the quotient is a whole number, then 4 and 6,293,469.25 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 | 25,173,877 | |
| -1 | 25,173,877 |
If you did it right, you will end up with this table:
| 1 | 41 | 43 | 109 | 131 | 1,763 | 4,469 | 4,687 | 5,371 | 5,633 | 14,279 | 192,167 | 230,953 | 585,439 | 613,997 | 25,173,877 |
| -1 | -41 | -43 | -109 | -131 | -1,763 | -4,469 | -4,687 | -5,371 | -5,633 | -14,279 | -192,167 | -230,953 | -585,439 | -613,997 | -25,173,877 |
Here are some more numbers to try:
Try the factor calculator