A:
Positive:
1 x 1451403317 x 2073433329 x 5004839203 x 714977467 x 3107931531 x 948013269 x 4439910717 x 13543
Negative:
-1 x -145140331-7 x -20734333-29 x -5004839-203 x -714977-467 x -310793-1531 x -94801-3269 x -44399-10717 x -13543
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 145,140,331, 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 | 145,140,331 | |
| -1 | -145,140,331 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 145,140,331.
Example:
1 x 145,140,331 = 145,140,331
and
-1 x -145,140,331 = 145,140,331
Notice both answers equal 145,140,331
With that explanation out of the way, let's continue. Next, we take the number 145,140,331 and divide it by 2:
145,140,331 ÷ 2 = 72,570,165.5
If the quotient is a whole number, then 2 and 72,570,165.5 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 | 145,140,331 | |
| -1 | -145,140,331 |
Now, we try dividing 145,140,331 by 3:
145,140,331 ÷ 3 = 48,380,110.3333
If the quotient is a whole number, then 3 and 48,380,110.3333 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 | 145,140,331 | |
| -1 | -145,140,331 |
Let's try dividing by 4:
145,140,331 ÷ 4 = 36,285,082.75
If the quotient is a whole number, then 4 and 36,285,082.75 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 | 145,140,331 | |
| -1 | 145,140,331 |
If you did it right, you will end up with this table:
| 1 | 7 | 29 | 203 | 467 | 1,531 | 3,269 | 10,717 | 13,543 | 44,399 | 94,801 | 310,793 | 714,977 | 5,004,839 | 20,734,333 | 145,140,331 |
| -1 | -7 | -29 | -203 | -467 | -1,531 | -3,269 | -10,717 | -13,543 | -44,399 | -94,801 | -310,793 | -714,977 | -5,004,839 | -20,734,333 | -145,140,331 |
Here are some more numbers to try:
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