A:
Positive:
1 x 4041421455 x 8082842911 x 3674019555 x 73480391361 x 2969455399 x 748556805 x 5938914971 x 26995
Negative:
-1 x -404142145-5 x -80828429-11 x -36740195-55 x -7348039-1361 x -296945-5399 x -74855-6805 x -59389-14971 x -26995
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 404,142,145, 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 | 404,142,145 | |
| -1 | -404,142,145 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 404,142,145.
Example:
1 x 404,142,145 = 404,142,145
and
-1 x -404,142,145 = 404,142,145
Notice both answers equal 404,142,145
With that explanation out of the way, let's continue. Next, we take the number 404,142,145 and divide it by 2:
404,142,145 ÷ 2 = 202,071,072.5
If the quotient is a whole number, then 2 and 202,071,072.5 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 | 404,142,145 | |
| -1 | -404,142,145 |
Now, we try dividing 404,142,145 by 3:
404,142,145 ÷ 3 = 134,714,048.3333
If the quotient is a whole number, then 3 and 134,714,048.3333 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 | 404,142,145 | |
| -1 | -404,142,145 |
Let's try dividing by 4:
404,142,145 ÷ 4 = 101,035,536.25
If the quotient is a whole number, then 4 and 101,035,536.25 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 | 404,142,145 | |
| -1 | 404,142,145 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 1,361 | 5,399 | 6,805 | 14,971 | 26,995 | 59,389 | 74,855 | 296,945 | 7,348,039 | 36,740,195 | 80,828,429 | 404,142,145 |
| -1 | -5 | -11 | -55 | -1,361 | -5,399 | -6,805 | -14,971 | -26,995 | -59,389 | -74,855 | -296,945 | -7,348,039 | -36,740,195 | -80,828,429 | -404,142,145 |
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