A:
Positive:
1 x 1402385537 x 2003407913 x 1078758147 x 298379991 x 1541083329 x 426257611 x 2295234277 x 32789
Negative:
-1 x -140238553-7 x -20034079-13 x -10787581-47 x -2983799-91 x -1541083-329 x -426257-611 x -229523-4277 x -32789
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 140,238,553, 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 | 140,238,553 | |
| -1 | -140,238,553 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 140,238,553.
Example:
1 x 140,238,553 = 140,238,553
and
-1 x -140,238,553 = 140,238,553
Notice both answers equal 140,238,553
With that explanation out of the way, let's continue. Next, we take the number 140,238,553 and divide it by 2:
140,238,553 ÷ 2 = 70,119,276.5
If the quotient is a whole number, then 2 and 70,119,276.5 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 | 140,238,553 | |
| -1 | -140,238,553 |
Now, we try dividing 140,238,553 by 3:
140,238,553 ÷ 3 = 46,746,184.3333
If the quotient is a whole number, then 3 and 46,746,184.3333 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 | 140,238,553 | |
| -1 | -140,238,553 |
Let's try dividing by 4:
140,238,553 ÷ 4 = 35,059,638.25
If the quotient is a whole number, then 4 and 35,059,638.25 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 | 140,238,553 | |
| -1 | 140,238,553 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 47 | 91 | 329 | 611 | 4,277 | 32,789 | 229,523 | 426,257 | 1,541,083 | 2,983,799 | 10,787,581 | 20,034,079 | 140,238,553 |
| -1 | -7 | -13 | -47 | -91 | -329 | -611 | -4,277 | -32,789 | -229,523 | -426,257 | -1,541,083 | -2,983,799 | -10,787,581 | -20,034,079 | -140,238,553 |
Here are some more numbers to try:
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