A:
Positive:
1 x 287324355 x 574648773 x 393595223 x 128845353 x 81395365 x 787191115 x 257691765 x 16279
Negative:
-1 x -28732435-5 x -5746487-73 x -393595-223 x -128845-353 x -81395-365 x -78719-1115 x -25769-1765 x -16279
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 28,732,435, 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 | 28,732,435 | |
| -1 | -28,732,435 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 28,732,435.
Example:
1 x 28,732,435 = 28,732,435
and
-1 x -28,732,435 = 28,732,435
Notice both answers equal 28,732,435
With that explanation out of the way, let's continue. Next, we take the number 28,732,435 and divide it by 2:
28,732,435 ÷ 2 = 14,366,217.5
If the quotient is a whole number, then 2 and 14,366,217.5 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 | 28,732,435 | |
| -1 | -28,732,435 |
Now, we try dividing 28,732,435 by 3:
28,732,435 ÷ 3 = 9,577,478.3333
If the quotient is a whole number, then 3 and 9,577,478.3333 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 | 28,732,435 | |
| -1 | -28,732,435 |
Let's try dividing by 4:
28,732,435 ÷ 4 = 7,183,108.75
If the quotient is a whole number, then 4 and 7,183,108.75 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 | 28,732,435 | |
| -1 | 28,732,435 |
If you did it right, you will end up with this table:
| 1 | 5 | 73 | 223 | 353 | 365 | 1,115 | 1,765 | 16,279 | 25,769 | 78,719 | 81,395 | 128,845 | 393,595 | 5,746,487 | 28,732,435 |
| -1 | -5 | -73 | -223 | -353 | -365 | -1,115 | -1,765 | -16,279 | -25,769 | -78,719 | -81,395 | -128,845 | -393,595 | -5,746,487 | -28,732,435 |
Here are some more numbers to try:
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