A:
Positive:
1 x 3554802237 x 5078288947 x 7563409191 x 1861153329 x 10804871337 x 2658795657 x 628398977 x 39599
Negative:
-1 x -355480223-7 x -50782889-47 x -7563409-191 x -1861153-329 x -1080487-1337 x -265879-5657 x -62839-8977 x -39599
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 355,480,223, 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 | 355,480,223 | |
| -1 | -355,480,223 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 355,480,223.
Example:
1 x 355,480,223 = 355,480,223
and
-1 x -355,480,223 = 355,480,223
Notice both answers equal 355,480,223
With that explanation out of the way, let's continue. Next, we take the number 355,480,223 and divide it by 2:
355,480,223 ÷ 2 = 177,740,111.5
If the quotient is a whole number, then 2 and 177,740,111.5 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 | 355,480,223 | |
| -1 | -355,480,223 |
Now, we try dividing 355,480,223 by 3:
355,480,223 ÷ 3 = 118,493,407.6667
If the quotient is a whole number, then 3 and 118,493,407.6667 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 | 355,480,223 | |
| -1 | -355,480,223 |
Let's try dividing by 4:
355,480,223 ÷ 4 = 88,870,055.75
If the quotient is a whole number, then 4 and 88,870,055.75 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 | 355,480,223 | |
| -1 | 355,480,223 |
If you did it right, you will end up with this table:
| 1 | 7 | 47 | 191 | 329 | 1,337 | 5,657 | 8,977 | 39,599 | 62,839 | 265,879 | 1,080,487 | 1,861,153 | 7,563,409 | 50,782,889 | 355,480,223 |
| -1 | -7 | -47 | -191 | -329 | -1,337 | -5,657 | -8,977 | -39,599 | -62,839 | -265,879 | -1,080,487 | -1,861,153 | -7,563,409 | -50,782,889 | -355,480,223 |
Here are some more numbers to try:
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