A:
Positive:
1 x 289090277 x 412986117 x 170053129 x 996863119 x 242933203 x 142409493 x 586393451 x 8377
Negative:
-1 x -28909027-7 x -4129861-17 x -1700531-29 x -996863-119 x -242933-203 x -142409-493 x -58639-3451 x -8377
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 28,909,027, 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 | 28,909,027 | |
| -1 | -28,909,027 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 28,909,027.
Example:
1 x 28,909,027 = 28,909,027
and
-1 x -28,909,027 = 28,909,027
Notice both answers equal 28,909,027
With that explanation out of the way, let's continue. Next, we take the number 28,909,027 and divide it by 2:
28,909,027 ÷ 2 = 14,454,513.5
If the quotient is a whole number, then 2 and 14,454,513.5 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 | 28,909,027 | |
| -1 | -28,909,027 |
Now, we try dividing 28,909,027 by 3:
28,909,027 ÷ 3 = 9,636,342.3333
If the quotient is a whole number, then 3 and 9,636,342.3333 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 | 28,909,027 | |
| -1 | -28,909,027 |
Let's try dividing by 4:
28,909,027 ÷ 4 = 7,227,256.75
If the quotient is a whole number, then 4 and 7,227,256.75 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 | 28,909,027 | |
| -1 | 28,909,027 |
If you did it right, you will end up with this table:
| 1 | 7 | 17 | 29 | 119 | 203 | 493 | 3,451 | 8,377 | 58,639 | 142,409 | 242,933 | 996,863 | 1,700,531 | 4,129,861 | 28,909,027 |
| -1 | -7 | -17 | -29 | -119 | -203 | -493 | -3,451 | -8,377 | -58,639 | -142,409 | -242,933 | -996,863 | -1,700,531 | -4,129,861 | -28,909,027 |
Here are some more numbers to try:
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