A:
Positive:
1 x 5152525555 x 10305051123 x 22402285115 x 44804571831 x 2814052447 x 2105659155 x 5628112235 x 42113
Negative:
-1 x -515252555-5 x -103050511-23 x -22402285-115 x -4480457-1831 x -281405-2447 x -210565-9155 x -56281-12235 x -42113
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 515,252,555, 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 | 515,252,555 | |
| -1 | -515,252,555 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 515,252,555.
Example:
1 x 515,252,555 = 515,252,555
and
-1 x -515,252,555 = 515,252,555
Notice both answers equal 515,252,555
With that explanation out of the way, let's continue. Next, we take the number 515,252,555 and divide it by 2:
515,252,555 ÷ 2 = 257,626,277.5
If the quotient is a whole number, then 2 and 257,626,277.5 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 | 515,252,555 | |
| -1 | -515,252,555 |
Now, we try dividing 515,252,555 by 3:
515,252,555 ÷ 3 = 171,750,851.6667
If the quotient is a whole number, then 3 and 171,750,851.6667 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 | 515,252,555 | |
| -1 | -515,252,555 |
Let's try dividing by 4:
515,252,555 ÷ 4 = 128,813,138.75
If the quotient is a whole number, then 4 and 128,813,138.75 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 | 515,252,555 | |
| -1 | 515,252,555 |
If you did it right, you will end up with this table:
| 1 | 5 | 23 | 115 | 1,831 | 2,447 | 9,155 | 12,235 | 42,113 | 56,281 | 210,565 | 281,405 | 4,480,457 | 22,402,285 | 103,050,511 | 515,252,555 |
| -1 | -5 | -23 | -115 | -1,831 | -2,447 | -9,155 | -12,235 | -42,113 | -56,281 | -210,565 | -281,405 | -4,480,457 | -22,402,285 | -103,050,511 | -515,252,555 |
Here are some more numbers to try:
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