A:
Positive:
1 x 4201104255 x 840220857 x 6001577519 x 2211107525 x 1680441735 x 1200315595 x 4422215133 x 3158725175 x 2400631475 x 884443665 x 6317453325 x 126349
Negative:
-1 x -420110425-5 x -84022085-7 x -60015775-19 x -22111075-25 x -16804417-35 x -12003155-95 x -4422215-133 x -3158725-175 x -2400631-475 x -884443-665 x -631745-3325 x -126349
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 420,110,425, 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 | 420,110,425 | |
| -1 | -420,110,425 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 420,110,425.
Example:
1 x 420,110,425 = 420,110,425
and
-1 x -420,110,425 = 420,110,425
Notice both answers equal 420,110,425
With that explanation out of the way, let's continue. Next, we take the number 420,110,425 and divide it by 2:
420,110,425 ÷ 2 = 210,055,212.5
If the quotient is a whole number, then 2 and 210,055,212.5 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 | 420,110,425 | |
| -1 | -420,110,425 |
Now, we try dividing 420,110,425 by 3:
420,110,425 ÷ 3 = 140,036,808.3333
If the quotient is a whole number, then 3 and 140,036,808.3333 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 | 420,110,425 | |
| -1 | -420,110,425 |
Let's try dividing by 4:
420,110,425 ÷ 4 = 105,027,606.25
If the quotient is a whole number, then 4 and 105,027,606.25 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 | 420,110,425 | |
| -1 | 420,110,425 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 19 | 25 | 35 | 95 | 133 | 175 | 475 | 665 | 3,325 | 126,349 | 631,745 | 884,443 | 2,400,631 | 3,158,725 | 4,422,215 | 12,003,155 | 16,804,417 | 22,111,075 | 60,015,775 | 84,022,085 | 420,110,425 |
| -1 | -5 | -7 | -19 | -25 | -35 | -95 | -133 | -175 | -475 | -665 | -3,325 | -126,349 | -631,745 | -884,443 | -2,400,631 | -3,158,725 | -4,422,215 | -12,003,155 | -16,804,417 | -22,111,075 | -60,015,775 | -84,022,085 | -420,110,425 |
Here are some more numbers to try:
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