A:
Positive:
1 x 256373397 x 366247713 x 197210349 x 52321191 x 281729167 x 153517241 x 106379637 x 402471169 x 219311687 x 151972171 x 118093133 x 8183
Negative:
-1 x -25637339-7 x -3662477-13 x -1972103-49 x -523211-91 x -281729-167 x -153517-241 x -106379-637 x -40247-1169 x -21931-1687 x -15197-2171 x -11809-3133 x -8183
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 25,637,339, 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 | 25,637,339 | |
| -1 | -25,637,339 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 25,637,339.
Example:
1 x 25,637,339 = 25,637,339
and
-1 x -25,637,339 = 25,637,339
Notice both answers equal 25,637,339
With that explanation out of the way, let's continue. Next, we take the number 25,637,339 and divide it by 2:
25,637,339 ÷ 2 = 12,818,669.5
If the quotient is a whole number, then 2 and 12,818,669.5 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 | 25,637,339 | |
| -1 | -25,637,339 |
Now, we try dividing 25,637,339 by 3:
25,637,339 ÷ 3 = 8,545,779.6667
If the quotient is a whole number, then 3 and 8,545,779.6667 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 | 25,637,339 | |
| -1 | -25,637,339 |
Let's try dividing by 4:
25,637,339 ÷ 4 = 6,409,334.75
If the quotient is a whole number, then 4 and 6,409,334.75 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 | 25,637,339 | |
| -1 | 25,637,339 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 49 | 91 | 167 | 241 | 637 | 1,169 | 1,687 | 2,171 | 3,133 | 8,183 | 11,809 | 15,197 | 21,931 | 40,247 | 106,379 | 153,517 | 281,729 | 523,211 | 1,972,103 | 3,662,477 | 25,637,339 |
| -1 | -7 | -13 | -49 | -91 | -167 | -241 | -637 | -1,169 | -1,687 | -2,171 | -3,133 | -8,183 | -11,809 | -15,197 | -21,931 | -40,247 | -106,379 | -153,517 | -281,729 | -523,211 | -1,972,103 | -3,662,477 | -25,637,339 |
Here are some more numbers to try:
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