A:
Positive:
1 x 15460100917 x 909417723 x 672178371 x 2177479391 x 3953991207 x 1280871633 x 946735569 x 27761
Negative:
-1 x -154601009-17 x -9094177-23 x -6721783-71 x -2177479-391 x -395399-1207 x -128087-1633 x -94673-5569 x -27761
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 154,601,009, 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 | 154,601,009 | |
| -1 | -154,601,009 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 154,601,009.
Example:
1 x 154,601,009 = 154,601,009
and
-1 x -154,601,009 = 154,601,009
Notice both answers equal 154,601,009
With that explanation out of the way, let's continue. Next, we take the number 154,601,009 and divide it by 2:
154,601,009 ÷ 2 = 77,300,504.5
If the quotient is a whole number, then 2 and 77,300,504.5 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 | 154,601,009 | |
| -1 | -154,601,009 |
Now, we try dividing 154,601,009 by 3:
154,601,009 ÷ 3 = 51,533,669.6667
If the quotient is a whole number, then 3 and 51,533,669.6667 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 | 154,601,009 | |
| -1 | -154,601,009 |
Let's try dividing by 4:
154,601,009 ÷ 4 = 38,650,252.25
If the quotient is a whole number, then 4 and 38,650,252.25 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 | 154,601,009 | |
| -1 | 154,601,009 |
If you did it right, you will end up with this table:
| 1 | 17 | 23 | 71 | 391 | 1,207 | 1,633 | 5,569 | 27,761 | 94,673 | 128,087 | 395,399 | 2,177,479 | 6,721,783 | 9,094,177 | 154,601,009 |
| -1 | -17 | -23 | -71 | -391 | -1,207 | -1,633 | -5,569 | -27,761 | -94,673 | -128,087 | -395,399 | -2,177,479 | -6,721,783 | -9,094,177 | -154,601,009 |
Here are some more numbers to try:
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