A:
Positive:
1 x 1533773297 x 2191104719 x 8072491133 x 1153213383 x 4004632681 x 572093011 x 509397277 x 21077
Negative:
-1 x -153377329-7 x -21911047-19 x -8072491-133 x -1153213-383 x -400463-2681 x -57209-3011 x -50939-7277 x -21077
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 153,377,329, 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 | 153,377,329 | |
| -1 | -153,377,329 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 153,377,329.
Example:
1 x 153,377,329 = 153,377,329
and
-1 x -153,377,329 = 153,377,329
Notice both answers equal 153,377,329
With that explanation out of the way, let's continue. Next, we take the number 153,377,329 and divide it by 2:
153,377,329 ÷ 2 = 76,688,664.5
If the quotient is a whole number, then 2 and 76,688,664.5 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 | 153,377,329 | |
| -1 | -153,377,329 |
Now, we try dividing 153,377,329 by 3:
153,377,329 ÷ 3 = 51,125,776.3333
If the quotient is a whole number, then 3 and 51,125,776.3333 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 | 153,377,329 | |
| -1 | -153,377,329 |
Let's try dividing by 4:
153,377,329 ÷ 4 = 38,344,332.25
If the quotient is a whole number, then 4 and 38,344,332.25 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 | 153,377,329 | |
| -1 | 153,377,329 |
If you did it right, you will end up with this table:
| 1 | 7 | 19 | 133 | 383 | 2,681 | 3,011 | 7,277 | 21,077 | 50,939 | 57,209 | 400,463 | 1,153,213 | 8,072,491 | 21,911,047 | 153,377,329 |
| -1 | -7 | -19 | -133 | -383 | -2,681 | -3,011 | -7,277 | -21,077 | -50,939 | -57,209 | -400,463 | -1,153,213 | -8,072,491 | -21,911,047 | -153,377,329 |
Here are some more numbers to try:
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