A:
Positive:
1 x 1451455 x 290297 x 2073511 x 1319513 x 1116529 x 500535 x 414755 x 263965 x 223377 x 188591 x 1595143 x 1015145 x 1001203 x 715319 x 455377 x 385
Negative:
-1 x -145145-5 x -29029-7 x -20735-11 x -13195-13 x -11165-29 x -5005-35 x -4147-55 x -2639-65 x -2233-77 x -1885-91 x -1595-143 x -1015-145 x -1001-203 x -715-319 x -455-377 x -385
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 145,145, 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 | 145,145 | |
| -1 | -145,145 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 145,145.
Example:
1 x 145,145 = 145,145
and
-1 x -145,145 = 145,145
Notice both answers equal 145,145
With that explanation out of the way, let's continue. Next, we take the number 145,145 and divide it by 2:
145,145 ÷ 2 = 72,572.5
If the quotient is a whole number, then 2 and 72,572.5 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 | 145,145 | |
| -1 | -145,145 |
Now, we try dividing 145,145 by 3:
145,145 ÷ 3 = 48,381.6667
If the quotient is a whole number, then 3 and 48,381.6667 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 | 145,145 | |
| -1 | -145,145 |
Let's try dividing by 4:
145,145 ÷ 4 = 36,286.25
If the quotient is a whole number, then 4 and 36,286.25 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 | 145,145 | |
| -1 | 145,145 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 11 | 13 | 29 | 35 | 55 | 65 | 77 | 91 | 143 | 145 | 203 | 319 | 377 | 385 | 455 | 715 | 1,001 | 1,015 | 1,595 | 1,885 | 2,233 | 2,639 | 4,147 | 5,005 | 11,165 | 13,195 | 20,735 | 29,029 | 145,145 |
| -1 | -5 | -7 | -11 | -13 | -29 | -35 | -55 | -65 | -77 | -91 | -143 | -145 | -203 | -319 | -377 | -385 | -455 | -715 | -1,001 | -1,015 | -1,595 | -1,885 | -2,233 | -2,639 | -4,147 | -5,005 | -11,165 | -13,195 | -20,735 | -29,029 | -145,145 |
Here are some more numbers to try:
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