A:
Positive:
1 x 313023113 x 24078719 x 16474923 x 13609729 x 107939247 x 12673299 x 10469361 x 8671377 x 8303437 x 7163551 x 5681667 x 4693
Negative:
-1 x -3130231-13 x -240787-19 x -164749-23 x -136097-29 x -107939-247 x -12673-299 x -10469-361 x -8671-377 x -8303-437 x -7163-551 x -5681-667 x -4693
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 3,130,231, 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 | 3,130,231 | |
| -1 | -3,130,231 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,130,231.
Example:
1 x 3,130,231 = 3,130,231
and
-1 x -3,130,231 = 3,130,231
Notice both answers equal 3,130,231
With that explanation out of the way, let's continue. Next, we take the number 3,130,231 and divide it by 2:
3,130,231 ÷ 2 = 1,565,115.5
If the quotient is a whole number, then 2 and 1,565,115.5 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 | 3,130,231 | |
| -1 | -3,130,231 |
Now, we try dividing 3,130,231 by 3:
3,130,231 ÷ 3 = 1,043,410.3333
If the quotient is a whole number, then 3 and 1,043,410.3333 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 | 3,130,231 | |
| -1 | -3,130,231 |
Let's try dividing by 4:
3,130,231 ÷ 4 = 782,557.75
If the quotient is a whole number, then 4 and 782,557.75 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 | 3,130,231 | |
| -1 | 3,130,231 |
If you did it right, you will end up with this table:
| 1 | 13 | 19 | 23 | 29 | 247 | 299 | 361 | 377 | 437 | 551 | 667 | 4,693 | 5,681 | 7,163 | 8,303 | 8,671 | 10,469 | 12,673 | 107,939 | 136,097 | 164,749 | 240,787 | 3,130,231 |
| -1 | -13 | -19 | -23 | -29 | -247 | -299 | -361 | -377 | -437 | -551 | -667 | -4,693 | -5,681 | -7,163 | -8,303 | -8,671 | -10,469 | -12,673 | -107,939 | -136,097 | -164,749 | -240,787 | -3,130,231 |
Here are some more numbers to try:
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