A:
Positive:
1 x 2820192713 x 216937947 x 600041101 x 279227457 x 61711611 x 461571313 x 214794747 x 5941
Negative:
-1 x -28201927-13 x -2169379-47 x -600041-101 x -279227-457 x -61711-611 x -46157-1313 x -21479-4747 x -5941
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 28,201,927, 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 | 28,201,927 | |
| -1 | -28,201,927 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 28,201,927.
Example:
1 x 28,201,927 = 28,201,927
and
-1 x -28,201,927 = 28,201,927
Notice both answers equal 28,201,927
With that explanation out of the way, let's continue. Next, we take the number 28,201,927 and divide it by 2:
28,201,927 ÷ 2 = 14,100,963.5
If the quotient is a whole number, then 2 and 14,100,963.5 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 | 28,201,927 | |
| -1 | -28,201,927 |
Now, we try dividing 28,201,927 by 3:
28,201,927 ÷ 3 = 9,400,642.3333
If the quotient is a whole number, then 3 and 9,400,642.3333 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 | 28,201,927 | |
| -1 | -28,201,927 |
Let's try dividing by 4:
28,201,927 ÷ 4 = 7,050,481.75
If the quotient is a whole number, then 4 and 7,050,481.75 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 | 28,201,927 | |
| -1 | 28,201,927 |
If you did it right, you will end up with this table:
| 1 | 13 | 47 | 101 | 457 | 611 | 1,313 | 4,747 | 5,941 | 21,479 | 46,157 | 61,711 | 279,227 | 600,041 | 2,169,379 | 28,201,927 |
| -1 | -13 | -47 | -101 | -457 | -611 | -1,313 | -4,747 | -5,941 | -21,479 | -46,157 | -61,711 | -279,227 | -600,041 | -2,169,379 | -28,201,927 |
Here are some more numbers to try:
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