A:
Positive:
1 x 1530313337 x 2186161913 x 1177164183 x 184375191 x 1681663581 x 2633931079 x 1418277553 x 20261
Negative:
-1 x -153031333-7 x -21861619-13 x -11771641-83 x -1843751-91 x -1681663-581 x -263393-1079 x -141827-7553 x -20261
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 153,031,333, 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 | 153,031,333 | |
| -1 | -153,031,333 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 153,031,333.
Example:
1 x 153,031,333 = 153,031,333
and
-1 x -153,031,333 = 153,031,333
Notice both answers equal 153,031,333
With that explanation out of the way, let's continue. Next, we take the number 153,031,333 and divide it by 2:
153,031,333 ÷ 2 = 76,515,666.5
If the quotient is a whole number, then 2 and 76,515,666.5 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 | 153,031,333 | |
| -1 | -153,031,333 |
Now, we try dividing 153,031,333 by 3:
153,031,333 ÷ 3 = 51,010,444.3333
If the quotient is a whole number, then 3 and 51,010,444.3333 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 | 153,031,333 | |
| -1 | -153,031,333 |
Let's try dividing by 4:
153,031,333 ÷ 4 = 38,257,833.25
If the quotient is a whole number, then 4 and 38,257,833.25 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 | 153,031,333 | |
| -1 | 153,031,333 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 83 | 91 | 581 | 1,079 | 7,553 | 20,261 | 141,827 | 263,393 | 1,681,663 | 1,843,751 | 11,771,641 | 21,861,619 | 153,031,333 |
| -1 | -7 | -13 | -83 | -91 | -581 | -1,079 | -7,553 | -20,261 | -141,827 | -263,393 | -1,681,663 | -1,843,751 | -11,771,641 | -21,861,619 | -153,031,333 |
Here are some more numbers to try:
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