A:
Positive:
1 x 2482372137 x 3546245917 x 1460218953 x 4683721119 x 2086027371 x 669103901 x 2755136307 x 39359
Negative:
-1 x -248237213-7 x -35462459-17 x -14602189-53 x -4683721-119 x -2086027-371 x -669103-901 x -275513-6307 x -39359
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 248,237,213, 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 | 248,237,213 | |
| -1 | -248,237,213 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 248,237,213.
Example:
1 x 248,237,213 = 248,237,213
and
-1 x -248,237,213 = 248,237,213
Notice both answers equal 248,237,213
With that explanation out of the way, let's continue. Next, we take the number 248,237,213 and divide it by 2:
248,237,213 ÷ 2 = 124,118,606.5
If the quotient is a whole number, then 2 and 124,118,606.5 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 | 248,237,213 | |
| -1 | -248,237,213 |
Now, we try dividing 248,237,213 by 3:
248,237,213 ÷ 3 = 82,745,737.6667
If the quotient is a whole number, then 3 and 82,745,737.6667 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 | 248,237,213 | |
| -1 | -248,237,213 |
Let's try dividing by 4:
248,237,213 ÷ 4 = 62,059,303.25
If the quotient is a whole number, then 4 and 62,059,303.25 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 | 248,237,213 | |
| -1 | 248,237,213 |
If you did it right, you will end up with this table:
| 1 | 7 | 17 | 53 | 119 | 371 | 901 | 6,307 | 39,359 | 275,513 | 669,103 | 2,086,027 | 4,683,721 | 14,602,189 | 35,462,459 | 248,237,213 |
| -1 | -7 | -17 | -53 | -119 | -371 | -901 | -6,307 | -39,359 | -275,513 | -669,103 | -2,086,027 | -4,683,721 | -14,602,189 | -35,462,459 | -248,237,213 |
Here are some more numbers to try:
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