A:
Positive:
1 x 1633123037 x 2333032911 x 1484657377 x 21209391061 x 1539231999 x 816977427 x 2198911671 x 13993
Negative:
-1 x -163312303-7 x -23330329-11 x -14846573-77 x -2120939-1061 x -153923-1999 x -81697-7427 x -21989-11671 x -13993
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 163,312,303, 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 | 163,312,303 | |
| -1 | -163,312,303 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 163,312,303.
Example:
1 x 163,312,303 = 163,312,303
and
-1 x -163,312,303 = 163,312,303
Notice both answers equal 163,312,303
With that explanation out of the way, let's continue. Next, we take the number 163,312,303 and divide it by 2:
163,312,303 ÷ 2 = 81,656,151.5
If the quotient is a whole number, then 2 and 81,656,151.5 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 | 163,312,303 | |
| -1 | -163,312,303 |
Now, we try dividing 163,312,303 by 3:
163,312,303 ÷ 3 = 54,437,434.3333
If the quotient is a whole number, then 3 and 54,437,434.3333 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 | 163,312,303 | |
| -1 | -163,312,303 |
Let's try dividing by 4:
163,312,303 ÷ 4 = 40,828,075.75
If the quotient is a whole number, then 4 and 40,828,075.75 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 | 163,312,303 | |
| -1 | 163,312,303 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 77 | 1,061 | 1,999 | 7,427 | 11,671 | 13,993 | 21,989 | 81,697 | 153,923 | 2,120,939 | 14,846,573 | 23,330,329 | 163,312,303 |
| -1 | -7 | -11 | -77 | -1,061 | -1,999 | -7,427 | -11,671 | -13,993 | -21,989 | -81,697 | -153,923 | -2,120,939 | -14,846,573 | -23,330,329 | -163,312,303 |
Here are some more numbers to try:
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