A:
Positive:
1 x 4046435477 x 5780622111 x 3678577777 x 5255111353 x 11462992471 x 1637573883 x 10420914887 x 27181
Negative:
-1 x -404643547-7 x -57806221-11 x -36785777-77 x -5255111-353 x -1146299-2471 x -163757-3883 x -104209-14887 x -27181
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 404,643,547, 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 | 404,643,547 | |
| -1 | -404,643,547 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 404,643,547.
Example:
1 x 404,643,547 = 404,643,547
and
-1 x -404,643,547 = 404,643,547
Notice both answers equal 404,643,547
With that explanation out of the way, let's continue. Next, we take the number 404,643,547 and divide it by 2:
404,643,547 ÷ 2 = 202,321,773.5
If the quotient is a whole number, then 2 and 202,321,773.5 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 | 404,643,547 | |
| -1 | -404,643,547 |
Now, we try dividing 404,643,547 by 3:
404,643,547 ÷ 3 = 134,881,182.3333
If the quotient is a whole number, then 3 and 134,881,182.3333 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 | 404,643,547 | |
| -1 | -404,643,547 |
Let's try dividing by 4:
404,643,547 ÷ 4 = 101,160,886.75
If the quotient is a whole number, then 4 and 101,160,886.75 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 | 404,643,547 | |
| -1 | 404,643,547 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 77 | 353 | 2,471 | 3,883 | 14,887 | 27,181 | 104,209 | 163,757 | 1,146,299 | 5,255,111 | 36,785,777 | 57,806,221 | 404,643,547 |
| -1 | -7 | -11 | -77 | -353 | -2,471 | -3,883 | -14,887 | -27,181 | -104,209 | -163,757 | -1,146,299 | -5,255,111 | -36,785,777 | -57,806,221 | -404,643,547 |
Here are some more numbers to try:
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