A:
Positive:
1 x 15400310913 x 11846393169 x 911261191 x 806299367 x 4196272197 x 700972483 x 620234771 x 32279
Negative:
-1 x -154003109-13 x -11846393-169 x -911261-191 x -806299-367 x -419627-2197 x -70097-2483 x -62023-4771 x -32279
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 154,003,109, 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 | 154,003,109 | |
| -1 | -154,003,109 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 154,003,109.
Example:
1 x 154,003,109 = 154,003,109
and
-1 x -154,003,109 = 154,003,109
Notice both answers equal 154,003,109
With that explanation out of the way, let's continue. Next, we take the number 154,003,109 and divide it by 2:
154,003,109 ÷ 2 = 77,001,554.5
If the quotient is a whole number, then 2 and 77,001,554.5 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 | 154,003,109 | |
| -1 | -154,003,109 |
Now, we try dividing 154,003,109 by 3:
154,003,109 ÷ 3 = 51,334,369.6667
If the quotient is a whole number, then 3 and 51,334,369.6667 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 | 154,003,109 | |
| -1 | -154,003,109 |
Let's try dividing by 4:
154,003,109 ÷ 4 = 38,500,777.25
If the quotient is a whole number, then 4 and 38,500,777.25 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 | 154,003,109 | |
| -1 | 154,003,109 |
If you did it right, you will end up with this table:
| 1 | 13 | 169 | 191 | 367 | 2,197 | 2,483 | 4,771 | 32,279 | 62,023 | 70,097 | 419,627 | 806,299 | 911,261 | 11,846,393 | 154,003,109 |
| -1 | -13 | -169 | -191 | -367 | -2,197 | -2,483 | -4,771 | -32,279 | -62,023 | -70,097 | -419,627 | -806,299 | -911,261 | -11,846,393 | -154,003,109 |
Here are some more numbers to try:
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