A:
Positive:
1 x 31661122347 x 673640971 x 445931379 x 40077371201 x 2636233337 x 948793713 x 852715609 x 56447
Negative:
-1 x -316611223-47 x -6736409-71 x -4459313-79 x -4007737-1201 x -263623-3337 x -94879-3713 x -85271-5609 x -56447
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 316,611,223, 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 | 316,611,223 | |
| -1 | -316,611,223 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 316,611,223.
Example:
1 x 316,611,223 = 316,611,223
and
-1 x -316,611,223 = 316,611,223
Notice both answers equal 316,611,223
With that explanation out of the way, let's continue. Next, we take the number 316,611,223 and divide it by 2:
316,611,223 ÷ 2 = 158,305,611.5
If the quotient is a whole number, then 2 and 158,305,611.5 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 | 316,611,223 | |
| -1 | -316,611,223 |
Now, we try dividing 316,611,223 by 3:
316,611,223 ÷ 3 = 105,537,074.3333
If the quotient is a whole number, then 3 and 105,537,074.3333 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 | 316,611,223 | |
| -1 | -316,611,223 |
Let's try dividing by 4:
316,611,223 ÷ 4 = 79,152,805.75
If the quotient is a whole number, then 4 and 79,152,805.75 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 | 316,611,223 | |
| -1 | 316,611,223 |
If you did it right, you will end up with this table:
| 1 | 47 | 71 | 79 | 1,201 | 3,337 | 3,713 | 5,609 | 56,447 | 85,271 | 94,879 | 263,623 | 4,007,737 | 4,459,313 | 6,736,409 | 316,611,223 |
| -1 | -47 | -71 | -79 | -1,201 | -3,337 | -3,713 | -5,609 | -56,447 | -85,271 | -94,879 | -263,623 | -4,007,737 | -4,459,313 | -6,736,409 | -316,611,223 |
Here are some more numbers to try:
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