A:
Positive:
1 x 3434001555 x 686800317 x 4905716535 x 9811433463 x 7416852315 x 1483373241 x 10595516205 x 21191
Negative:
-1 x -343400155-5 x -68680031-7 x -49057165-35 x -9811433-463 x -741685-2315 x -148337-3241 x -105955-16205 x -21191
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 343,400,155, 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 | 343,400,155 | |
| -1 | -343,400,155 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 343,400,155.
Example:
1 x 343,400,155 = 343,400,155
and
-1 x -343,400,155 = 343,400,155
Notice both answers equal 343,400,155
With that explanation out of the way, let's continue. Next, we take the number 343,400,155 and divide it by 2:
343,400,155 ÷ 2 = 171,700,077.5
If the quotient is a whole number, then 2 and 171,700,077.5 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 | 343,400,155 | |
| -1 | -343,400,155 |
Now, we try dividing 343,400,155 by 3:
343,400,155 ÷ 3 = 114,466,718.3333
If the quotient is a whole number, then 3 and 114,466,718.3333 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 | 343,400,155 | |
| -1 | -343,400,155 |
Let's try dividing by 4:
343,400,155 ÷ 4 = 85,850,038.75
If the quotient is a whole number, then 4 and 85,850,038.75 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 | 343,400,155 | |
| -1 | 343,400,155 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 463 | 2,315 | 3,241 | 16,205 | 21,191 | 105,955 | 148,337 | 741,685 | 9,811,433 | 49,057,165 | 68,680,031 | 343,400,155 |
| -1 | -5 | -7 | -35 | -463 | -2,315 | -3,241 | -16,205 | -21,191 | -105,955 | -148,337 | -741,685 | -9,811,433 | -49,057,165 | -68,680,031 | -343,400,155 |
Here are some more numbers to try:
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