A:
Positive:
1 x 15203110767 x 226912197 x 1567331149 x 1020343157 x 9683516499 x 233939983 x 1522910519 x 14453
Negative:
-1 x -152031107-67 x -2269121-97 x -1567331-149 x -1020343-157 x -968351-6499 x -23393-9983 x -15229-10519 x -14453
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 152,031,107, 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 | 152,031,107 | |
| -1 | -152,031,107 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 152,031,107.
Example:
1 x 152,031,107 = 152,031,107
and
-1 x -152,031,107 = 152,031,107
Notice both answers equal 152,031,107
With that explanation out of the way, let's continue. Next, we take the number 152,031,107 and divide it by 2:
152,031,107 ÷ 2 = 76,015,553.5
If the quotient is a whole number, then 2 and 76,015,553.5 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 | 152,031,107 | |
| -1 | -152,031,107 |
Now, we try dividing 152,031,107 by 3:
152,031,107 ÷ 3 = 50,677,035.6667
If the quotient is a whole number, then 3 and 50,677,035.6667 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 | 152,031,107 | |
| -1 | -152,031,107 |
Let's try dividing by 4:
152,031,107 ÷ 4 = 38,007,776.75
If the quotient is a whole number, then 4 and 38,007,776.75 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 | 152,031,107 | |
| -1 | 152,031,107 |
If you did it right, you will end up with this table:
| 1 | 67 | 97 | 149 | 157 | 6,499 | 9,983 | 10,519 | 14,453 | 15,229 | 23,393 | 968,351 | 1,020,343 | 1,567,331 | 2,269,121 | 152,031,107 |
| -1 | -67 | -97 | -149 | -157 | -6,499 | -9,983 | -10,519 | -14,453 | -15,229 | -23,393 | -968,351 | -1,020,343 | -1,567,331 | -2,269,121 | -152,031,107 |
Here are some more numbers to try:
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