A:
Positive:
1 x 283964455 x 56792897 x 405663511 x 258149535 x 81132755 x 51629977 x 368785385 x 73757
Negative:
-1 x -28396445-5 x -5679289-7 x -4056635-11 x -2581495-35 x -811327-55 x -516299-77 x -368785-385 x -73757
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 28,396,445, 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 | 28,396,445 | |
| -1 | -28,396,445 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 28,396,445.
Example:
1 x 28,396,445 = 28,396,445
and
-1 x -28,396,445 = 28,396,445
Notice both answers equal 28,396,445
With that explanation out of the way, let's continue. Next, we take the number 28,396,445 and divide it by 2:
28,396,445 ÷ 2 = 14,198,222.5
If the quotient is a whole number, then 2 and 14,198,222.5 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 | 28,396,445 | |
| -1 | -28,396,445 |
Now, we try dividing 28,396,445 by 3:
28,396,445 ÷ 3 = 9,465,481.6667
If the quotient is a whole number, then 3 and 9,465,481.6667 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 | 28,396,445 | |
| -1 | -28,396,445 |
Let's try dividing by 4:
28,396,445 ÷ 4 = 7,099,111.25
If the quotient is a whole number, then 4 and 7,099,111.25 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 | 28,396,445 | |
| -1 | 28,396,445 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 11 | 35 | 55 | 77 | 385 | 73,757 | 368,785 | 516,299 | 811,327 | 2,581,495 | 4,056,635 | 5,679,289 | 28,396,445 |
| -1 | -5 | -7 | -11 | -35 | -55 | -77 | -385 | -73,757 | -368,785 | -516,299 | -811,327 | -2,581,495 | -4,056,635 | -5,679,289 | -28,396,445 |
Here are some more numbers to try:
Try the factor calculator