A:
Positive:
1 x 1455431455 x 2910862911 x 1323119555 x 2646239809 x 1799053271 x 444954045 x 359818899 x 16355
Negative:
-1 x -145543145-5 x -29108629-11 x -13231195-55 x -2646239-809 x -179905-3271 x -44495-4045 x -35981-8899 x -16355
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 145,543,145, 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 | 145,543,145 | |
| -1 | -145,543,145 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 145,543,145.
Example:
1 x 145,543,145 = 145,543,145
and
-1 x -145,543,145 = 145,543,145
Notice both answers equal 145,543,145
With that explanation out of the way, let's continue. Next, we take the number 145,543,145 and divide it by 2:
145,543,145 ÷ 2 = 72,771,572.5
If the quotient is a whole number, then 2 and 72,771,572.5 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 | 145,543,145 | |
| -1 | -145,543,145 |
Now, we try dividing 145,543,145 by 3:
145,543,145 ÷ 3 = 48,514,381.6667
If the quotient is a whole number, then 3 and 48,514,381.6667 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 | 145,543,145 | |
| -1 | -145,543,145 |
Let's try dividing by 4:
145,543,145 ÷ 4 = 36,385,786.25
If the quotient is a whole number, then 4 and 36,385,786.25 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 | 145,543,145 | |
| -1 | 145,543,145 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 809 | 3,271 | 4,045 | 8,899 | 16,355 | 35,981 | 44,495 | 179,905 | 2,646,239 | 13,231,195 | 29,108,629 | 145,543,145 |
| -1 | -5 | -11 | -55 | -809 | -3,271 | -4,045 | -8,899 | -16,355 | -35,981 | -44,495 | -179,905 | -2,646,239 | -13,231,195 | -29,108,629 | -145,543,145 |
Here are some more numbers to try:
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