A:
Positive:
1 x 161412555 x 322825113 x 124163529 x 55659565 x 248327145 x 111319377 x 428151885 x 8563
Negative:
-1 x -16141255-5 x -3228251-13 x -1241635-29 x -556595-65 x -248327-145 x -111319-377 x -42815-1885 x -8563
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 16,141,255, 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 | 16,141,255 | |
| -1 | -16,141,255 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 16,141,255.
Example:
1 x 16,141,255 = 16,141,255
and
-1 x -16,141,255 = 16,141,255
Notice both answers equal 16,141,255
With that explanation out of the way, let's continue. Next, we take the number 16,141,255 and divide it by 2:
16,141,255 ÷ 2 = 8,070,627.5
If the quotient is a whole number, then 2 and 8,070,627.5 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 | 16,141,255 | |
| -1 | -16,141,255 |
Now, we try dividing 16,141,255 by 3:
16,141,255 ÷ 3 = 5,380,418.3333
If the quotient is a whole number, then 3 and 5,380,418.3333 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 | 16,141,255 | |
| -1 | -16,141,255 |
Let's try dividing by 4:
16,141,255 ÷ 4 = 4,035,313.75
If the quotient is a whole number, then 4 and 4,035,313.75 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 | 16,141,255 | |
| -1 | 16,141,255 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 29 | 65 | 145 | 377 | 1,885 | 8,563 | 42,815 | 111,319 | 248,327 | 556,595 | 1,241,635 | 3,228,251 | 16,141,255 |
| -1 | -5 | -13 | -29 | -65 | -145 | -377 | -1,885 | -8,563 | -42,815 | -111,319 | -248,327 | -556,595 | -1,241,635 | -3,228,251 | -16,141,255 |
Here are some more numbers to try:
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