A:
Positive:
1 x 250412897 x 357732713 x 192625317 x 147301791 x 275179119 x 210431221 x 1133091547 x 16187
Negative:
-1 x -25041289-7 x -3577327-13 x -1926253-17 x -1473017-91 x -275179-119 x -210431-221 x -113309-1547 x -16187
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 25,041,289, 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 | 25,041,289 | |
| -1 | -25,041,289 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 25,041,289.
Example:
1 x 25,041,289 = 25,041,289
and
-1 x -25,041,289 = 25,041,289
Notice both answers equal 25,041,289
With that explanation out of the way, let's continue. Next, we take the number 25,041,289 and divide it by 2:
25,041,289 ÷ 2 = 12,520,644.5
If the quotient is a whole number, then 2 and 12,520,644.5 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 | 25,041,289 | |
| -1 | -25,041,289 |
Now, we try dividing 25,041,289 by 3:
25,041,289 ÷ 3 = 8,347,096.3333
If the quotient is a whole number, then 3 and 8,347,096.3333 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 | 25,041,289 | |
| -1 | -25,041,289 |
Let's try dividing by 4:
25,041,289 ÷ 4 = 6,260,322.25
If the quotient is a whole number, then 4 and 6,260,322.25 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 | 25,041,289 | |
| -1 | 25,041,289 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 17 | 91 | 119 | 221 | 1,547 | 16,187 | 113,309 | 210,431 | 275,179 | 1,473,017 | 1,926,253 | 3,577,327 | 25,041,289 |
| -1 | -7 | -13 | -17 | -91 | -119 | -221 | -1,547 | -16,187 | -113,309 | -210,431 | -275,179 | -1,473,017 | -1,926,253 | -3,577,327 | -25,041,289 |
Here are some more numbers to try:
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