A:
Positive:
1 x 1331414155 x 2662828311 x 1210376555 x 242075373 x 1823855365 x 364771803 x 1658054015 x 33161
Negative:
-1 x -133141415-5 x -26628283-11 x -12103765-55 x -2420753-73 x -1823855-365 x -364771-803 x -165805-4015 x -33161
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 133,141,415, 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 | 133,141,415 | |
| -1 | -133,141,415 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 133,141,415.
Example:
1 x 133,141,415 = 133,141,415
and
-1 x -133,141,415 = 133,141,415
Notice both answers equal 133,141,415
With that explanation out of the way, let's continue. Next, we take the number 133,141,415 and divide it by 2:
133,141,415 ÷ 2 = 66,570,707.5
If the quotient is a whole number, then 2 and 66,570,707.5 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 | 133,141,415 | |
| -1 | -133,141,415 |
Now, we try dividing 133,141,415 by 3:
133,141,415 ÷ 3 = 44,380,471.6667
If the quotient is a whole number, then 3 and 44,380,471.6667 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 | 133,141,415 | |
| -1 | -133,141,415 |
Let's try dividing by 4:
133,141,415 ÷ 4 = 33,285,353.75
If the quotient is a whole number, then 4 and 33,285,353.75 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 | 133,141,415 | |
| -1 | 133,141,415 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 73 | 365 | 803 | 4,015 | 33,161 | 165,805 | 364,771 | 1,823,855 | 2,420,753 | 12,103,765 | 26,628,283 | 133,141,415 |
| -1 | -5 | -11 | -55 | -73 | -365 | -803 | -4,015 | -33,161 | -165,805 | -364,771 | -1,823,855 | -2,420,753 | -12,103,765 | -26,628,283 | -133,141,415 |
Here are some more numbers to try:
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