A:
Positive:
1 x 2824279913 x 217252353 x 532883179 x 157781229 x 123331689 x 409912327 x 121372977 x 9487
Negative:
-1 x -28242799-13 x -2172523-53 x -532883-179 x -157781-229 x -123331-689 x -40991-2327 x -12137-2977 x -9487
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 28,242,799, 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 | 28,242,799 | |
| -1 | -28,242,799 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 28,242,799.
Example:
1 x 28,242,799 = 28,242,799
and
-1 x -28,242,799 = 28,242,799
Notice both answers equal 28,242,799
With that explanation out of the way, let's continue. Next, we take the number 28,242,799 and divide it by 2:
28,242,799 ÷ 2 = 14,121,399.5
If the quotient is a whole number, then 2 and 14,121,399.5 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 | 28,242,799 | |
| -1 | -28,242,799 |
Now, we try dividing 28,242,799 by 3:
28,242,799 ÷ 3 = 9,414,266.3333
If the quotient is a whole number, then 3 and 9,414,266.3333 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 | 28,242,799 | |
| -1 | -28,242,799 |
Let's try dividing by 4:
28,242,799 ÷ 4 = 7,060,699.75
If the quotient is a whole number, then 4 and 7,060,699.75 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 | 28,242,799 | |
| -1 | 28,242,799 |
If you did it right, you will end up with this table:
| 1 | 13 | 53 | 179 | 229 | 689 | 2,327 | 2,977 | 9,487 | 12,137 | 40,991 | 123,331 | 157,781 | 532,883 | 2,172,523 | 28,242,799 |
| -1 | -13 | -53 | -179 | -229 | -689 | -2,327 | -2,977 | -9,487 | -12,137 | -40,991 | -123,331 | -157,781 | -532,883 | -2,172,523 | -28,242,799 |
Here are some more numbers to try:
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