A:
Positive:
1 x 16002255 x 32004511 x 14547523 x 6957525 x 6400955 x 29095115 x 13915121 x 13225253 x 6325275 x 5819529 x 3025575 x 2783605 x 26451265 x 1265
Negative:
-1 x -1600225-5 x -320045-11 x -145475-23 x -69575-25 x -64009-55 x -29095-115 x -13915-121 x -13225-253 x -6325-275 x -5819-529 x -3025-575 x -2783-605 x -2645-1265 x -1265
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 1,600,225, 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 | 1,600,225 | |
| -1 | -1,600,225 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,600,225.
Example:
1 x 1,600,225 = 1,600,225
and
-1 x -1,600,225 = 1,600,225
Notice both answers equal 1,600,225
With that explanation out of the way, let's continue. Next, we take the number 1,600,225 and divide it by 2:
1,600,225 ÷ 2 = 800,112.5
If the quotient is a whole number, then 2 and 800,112.5 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 | 1,600,225 | |
| -1 | -1,600,225 |
Now, we try dividing 1,600,225 by 3:
1,600,225 ÷ 3 = 533,408.3333
If the quotient is a whole number, then 3 and 533,408.3333 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 | 1,600,225 | |
| -1 | -1,600,225 |
Let's try dividing by 4:
1,600,225 ÷ 4 = 400,056.25
If the quotient is a whole number, then 4 and 400,056.25 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 | 1,600,225 | |
| -1 | 1,600,225 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 23 | 25 | 55 | 115 | 121 | 253 | 275 | 529 | 575 | 605 | 1,265 | 2,645 | 2,783 | 3,025 | 5,819 | 6,325 | 13,225 | 13,915 | 29,095 | 64,009 | 69,575 | 145,475 | 320,045 | 1,600,225 |
| -1 | -5 | -11 | -23 | -25 | -55 | -115 | -121 | -253 | -275 | -529 | -575 | -605 | -1,265 | -2,645 | -2,783 | -3,025 | -5,819 | -6,325 | -13,225 | -13,915 | -29,095 | -64,009 | -69,575 | -145,475 | -320,045 | -1,600,225 |
Here are some more numbers to try:
Try the factor calculator