A:
Positive:
1 x 4030421455 x 8060842911 x 3664019529 x 1389800555 x 7328039145 x 2779601319 x 12634551595 x 252691
Negative:
-1 x -403042145-5 x -80608429-11 x -36640195-29 x -13898005-55 x -7328039-145 x -2779601-319 x -1263455-1595 x -252691
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 403,042,145, 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 | 403,042,145 | |
| -1 | -403,042,145 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 403,042,145.
Example:
1 x 403,042,145 = 403,042,145
and
-1 x -403,042,145 = 403,042,145
Notice both answers equal 403,042,145
With that explanation out of the way, let's continue. Next, we take the number 403,042,145 and divide it by 2:
403,042,145 ÷ 2 = 201,521,072.5
If the quotient is a whole number, then 2 and 201,521,072.5 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 | 403,042,145 | |
| -1 | -403,042,145 |
Now, we try dividing 403,042,145 by 3:
403,042,145 ÷ 3 = 134,347,381.6667
If the quotient is a whole number, then 3 and 134,347,381.6667 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 | 403,042,145 | |
| -1 | -403,042,145 |
Let's try dividing by 4:
403,042,145 ÷ 4 = 100,760,536.25
If the quotient is a whole number, then 4 and 100,760,536.25 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 | 403,042,145 | |
| -1 | 403,042,145 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 29 | 55 | 145 | 319 | 1,595 | 252,691 | 1,263,455 | 2,779,601 | 7,328,039 | 13,898,005 | 36,640,195 | 80,608,429 | 403,042,145 |
| -1 | -5 | -11 | -29 | -55 | -145 | -319 | -1,595 | -252,691 | -1,263,455 | -2,779,601 | -7,328,039 | -13,898,005 | -36,640,195 | -80,608,429 | -403,042,145 |
Here are some more numbers to try:
Try the factor calculator