A:
Positive:
1 x 287792655 x 575585353 x 543005223 x 129055265 x 108601487 x 590951115 x 258112435 x 11819
Negative:
-1 x -28779265-5 x -5755853-53 x -543005-223 x -129055-265 x -108601-487 x -59095-1115 x -25811-2435 x -11819
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 28,779,265, 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 | 28,779,265 | |
| -1 | -28,779,265 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 28,779,265.
Example:
1 x 28,779,265 = 28,779,265
and
-1 x -28,779,265 = 28,779,265
Notice both answers equal 28,779,265
With that explanation out of the way, let's continue. Next, we take the number 28,779,265 and divide it by 2:
28,779,265 ÷ 2 = 14,389,632.5
If the quotient is a whole number, then 2 and 14,389,632.5 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 | 28,779,265 | |
| -1 | -28,779,265 |
Now, we try dividing 28,779,265 by 3:
28,779,265 ÷ 3 = 9,593,088.3333
If the quotient is a whole number, then 3 and 9,593,088.3333 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 | 28,779,265 | |
| -1 | -28,779,265 |
Let's try dividing by 4:
28,779,265 ÷ 4 = 7,194,816.25
If the quotient is a whole number, then 4 and 7,194,816.25 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 | 28,779,265 | |
| -1 | 28,779,265 |
If you did it right, you will end up with this table:
| 1 | 5 | 53 | 223 | 265 | 487 | 1,115 | 2,435 | 11,819 | 25,811 | 59,095 | 108,601 | 129,055 | 543,005 | 5,755,853 | 28,779,265 |
| -1 | -5 | -53 | -223 | -265 | -487 | -1,115 | -2,435 | -11,819 | -25,811 | -59,095 | -108,601 | -129,055 | -543,005 | -5,755,853 | -28,779,265 |
Here are some more numbers to try:
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