A:
Positive:
1 x 23868661311 x 2169878317 x 1404038953 x 4503521187 x 1276399583 x 409411901 x 2649139911 x 24083
Negative:
-1 x -238686613-11 x -21698783-17 x -14040389-53 x -4503521-187 x -1276399-583 x -409411-901 x -264913-9911 x -24083
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 238,686,613, 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 | 238,686,613 | |
| -1 | -238,686,613 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 238,686,613.
Example:
1 x 238,686,613 = 238,686,613
and
-1 x -238,686,613 = 238,686,613
Notice both answers equal 238,686,613
With that explanation out of the way, let's continue. Next, we take the number 238,686,613 and divide it by 2:
238,686,613 ÷ 2 = 119,343,306.5
If the quotient is a whole number, then 2 and 119,343,306.5 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 | 238,686,613 | |
| -1 | -238,686,613 |
Now, we try dividing 238,686,613 by 3:
238,686,613 ÷ 3 = 79,562,204.3333
If the quotient is a whole number, then 3 and 79,562,204.3333 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 | 238,686,613 | |
| -1 | -238,686,613 |
Let's try dividing by 4:
238,686,613 ÷ 4 = 59,671,653.25
If the quotient is a whole number, then 4 and 59,671,653.25 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 | 238,686,613 | |
| -1 | 238,686,613 |
If you did it right, you will end up with this table:
| 1 | 11 | 17 | 53 | 187 | 583 | 901 | 9,911 | 24,083 | 264,913 | 409,411 | 1,276,399 | 4,503,521 | 14,040,389 | 21,698,783 | 238,686,613 |
| -1 | -11 | -17 | -53 | -187 | -583 | -901 | -9,911 | -24,083 | -264,913 | -409,411 | -1,276,399 | -4,503,521 | -14,040,389 | -21,698,783 | -238,686,613 |
Here are some more numbers to try:
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