A:
Positive:
1 x 4201760055 x 8403520143 x 977153547 x 8939915215 x 1954307235 x 1787983967 x 4345151849 x 2272452021 x 2079054835 x 869039245 x 4544910105 x 41581
Negative:
-1 x -420176005-5 x -84035201-43 x -9771535-47 x -8939915-215 x -1954307-235 x -1787983-967 x -434515-1849 x -227245-2021 x -207905-4835 x -86903-9245 x -45449-10105 x -41581
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 420,176,005, 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 | 420,176,005 | |
| -1 | -420,176,005 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 420,176,005.
Example:
1 x 420,176,005 = 420,176,005
and
-1 x -420,176,005 = 420,176,005
Notice both answers equal 420,176,005
With that explanation out of the way, let's continue. Next, we take the number 420,176,005 and divide it by 2:
420,176,005 ÷ 2 = 210,088,002.5
If the quotient is a whole number, then 2 and 210,088,002.5 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 | 420,176,005 | |
| -1 | -420,176,005 |
Now, we try dividing 420,176,005 by 3:
420,176,005 ÷ 3 = 140,058,668.3333
If the quotient is a whole number, then 3 and 140,058,668.3333 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 | 420,176,005 | |
| -1 | -420,176,005 |
Let's try dividing by 4:
420,176,005 ÷ 4 = 105,044,001.25
If the quotient is a whole number, then 4 and 105,044,001.25 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 | 420,176,005 | |
| -1 | 420,176,005 |
If you did it right, you will end up with this table:
| 1 | 5 | 43 | 47 | 215 | 235 | 967 | 1,849 | 2,021 | 4,835 | 9,245 | 10,105 | 41,581 | 45,449 | 86,903 | 207,905 | 227,245 | 434,515 | 1,787,983 | 1,954,307 | 8,939,915 | 9,771,535 | 84,035,201 | 420,176,005 |
| -1 | -5 | -43 | -47 | -215 | -235 | -967 | -1,849 | -2,021 | -4,835 | -9,245 | -10,105 | -41,581 | -45,449 | -86,903 | -207,905 | -227,245 | -434,515 | -1,787,983 | -1,954,307 | -8,939,915 | -9,771,535 | -84,035,201 | -420,176,005 |
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