A:
Positive:
1 x 4021343055 x 80426861157 x 2561365229 x 1756045785 x 5122731145 x 3512092237 x 17976511185 x 35953
Negative:
-1 x -402134305-5 x -80426861-157 x -2561365-229 x -1756045-785 x -512273-1145 x -351209-2237 x -179765-11185 x -35953
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 402,134,305, 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 | 402,134,305 | |
| -1 | -402,134,305 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 402,134,305.
Example:
1 x 402,134,305 = 402,134,305
and
-1 x -402,134,305 = 402,134,305
Notice both answers equal 402,134,305
With that explanation out of the way, let's continue. Next, we take the number 402,134,305 and divide it by 2:
402,134,305 ÷ 2 = 201,067,152.5
If the quotient is a whole number, then 2 and 201,067,152.5 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 | 402,134,305 | |
| -1 | -402,134,305 |
Now, we try dividing 402,134,305 by 3:
402,134,305 ÷ 3 = 134,044,768.3333
If the quotient is a whole number, then 3 and 134,044,768.3333 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 | 402,134,305 | |
| -1 | -402,134,305 |
Let's try dividing by 4:
402,134,305 ÷ 4 = 100,533,576.25
If the quotient is a whole number, then 4 and 100,533,576.25 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 | 402,134,305 | |
| -1 | 402,134,305 |
If you did it right, you will end up with this table:
| 1 | 5 | 157 | 229 | 785 | 1,145 | 2,237 | 11,185 | 35,953 | 179,765 | 351,209 | 512,273 | 1,756,045 | 2,561,365 | 80,426,861 | 402,134,305 |
| -1 | -5 | -157 | -229 | -785 | -1,145 | -2,237 | -11,185 | -35,953 | -179,765 | -351,209 | -512,273 | -1,756,045 | -2,561,365 | -80,426,861 | -402,134,305 |
Here are some more numbers to try:
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