A:
Positive:
1 x 4023667277 x 5748096117 x 2366863171 x 5667137119 x 3381233497 x 8095911207 x 3333618449 x 47623
Negative:
-1 x -402366727-7 x -57480961-17 x -23668631-71 x -5667137-119 x -3381233-497 x -809591-1207 x -333361-8449 x -47623
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 402,366,727, 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 | 402,366,727 | |
| -1 | -402,366,727 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 402,366,727.
Example:
1 x 402,366,727 = 402,366,727
and
-1 x -402,366,727 = 402,366,727
Notice both answers equal 402,366,727
With that explanation out of the way, let's continue. Next, we take the number 402,366,727 and divide it by 2:
402,366,727 ÷ 2 = 201,183,363.5
If the quotient is a whole number, then 2 and 201,183,363.5 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 | 402,366,727 | |
| -1 | -402,366,727 |
Now, we try dividing 402,366,727 by 3:
402,366,727 ÷ 3 = 134,122,242.3333
If the quotient is a whole number, then 3 and 134,122,242.3333 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 | 402,366,727 | |
| -1 | -402,366,727 |
Let's try dividing by 4:
402,366,727 ÷ 4 = 100,591,681.75
If the quotient is a whole number, then 4 and 100,591,681.75 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 | 402,366,727 | |
| -1 | 402,366,727 |
If you did it right, you will end up with this table:
| 1 | 7 | 17 | 71 | 119 | 497 | 1,207 | 8,449 | 47,623 | 333,361 | 809,591 | 3,381,233 | 5,667,137 | 23,668,631 | 57,480,961 | 402,366,727 |
| -1 | -7 | -17 | -71 | -119 | -497 | -1,207 | -8,449 | -47,623 | -333,361 | -809,591 | -3,381,233 | -5,667,137 | -23,668,631 | -57,480,961 | -402,366,727 |
Here are some more numbers to try:
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