A:
Positive:
1 x 2321001555 x 464200317 x 3315716535 x 66314331217 x 1907155449 x 425956085 x 381438519 x 27245
Negative:
-1 x -232100155-5 x -46420031-7 x -33157165-35 x -6631433-1217 x -190715-5449 x -42595-6085 x -38143-8519 x -27245
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 232,100,155, 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 | 232,100,155 | |
| -1 | -232,100,155 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 232,100,155.
Example:
1 x 232,100,155 = 232,100,155
and
-1 x -232,100,155 = 232,100,155
Notice both answers equal 232,100,155
With that explanation out of the way, let's continue. Next, we take the number 232,100,155 and divide it by 2:
232,100,155 ÷ 2 = 116,050,077.5
If the quotient is a whole number, then 2 and 116,050,077.5 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 | 232,100,155 | |
| -1 | -232,100,155 |
Now, we try dividing 232,100,155 by 3:
232,100,155 ÷ 3 = 77,366,718.3333
If the quotient is a whole number, then 3 and 77,366,718.3333 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 | 232,100,155 | |
| -1 | -232,100,155 |
Let's try dividing by 4:
232,100,155 ÷ 4 = 58,025,038.75
If the quotient is a whole number, then 4 and 58,025,038.75 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 | 232,100,155 | |
| -1 | 232,100,155 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 1,217 | 5,449 | 6,085 | 8,519 | 27,245 | 38,143 | 42,595 | 190,715 | 6,631,433 | 33,157,165 | 46,420,031 | 232,100,155 |
| -1 | -5 | -7 | -35 | -1,217 | -5,449 | -6,085 | -8,519 | -27,245 | -38,143 | -42,595 | -190,715 | -6,631,433 | -33,157,165 | -46,420,031 | -232,100,155 |
Here are some more numbers to try:
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