A:
Positive:
1 x 3124321155 x 6248642323 x 13584005115 x 2716801677 x 4614953385 x 922994013 x 7785515571 x 20065
Negative:
-1 x -312432115-5 x -62486423-23 x -13584005-115 x -2716801-677 x -461495-3385 x -92299-4013 x -77855-15571 x -20065
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 312,432,115, 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 | 312,432,115 | |
| -1 | -312,432,115 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 312,432,115.
Example:
1 x 312,432,115 = 312,432,115
and
-1 x -312,432,115 = 312,432,115
Notice both answers equal 312,432,115
With that explanation out of the way, let's continue. Next, we take the number 312,432,115 and divide it by 2:
312,432,115 ÷ 2 = 156,216,057.5
If the quotient is a whole number, then 2 and 156,216,057.5 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 | 312,432,115 | |
| -1 | -312,432,115 |
Now, we try dividing 312,432,115 by 3:
312,432,115 ÷ 3 = 104,144,038.3333
If the quotient is a whole number, then 3 and 104,144,038.3333 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 | 312,432,115 | |
| -1 | -312,432,115 |
Let's try dividing by 4:
312,432,115 ÷ 4 = 78,108,028.75
If the quotient is a whole number, then 4 and 78,108,028.75 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 | 312,432,115 | |
| -1 | 312,432,115 |
If you did it right, you will end up with this table:
| 1 | 5 | 23 | 115 | 677 | 3,385 | 4,013 | 15,571 | 20,065 | 77,855 | 92,299 | 461,495 | 2,716,801 | 13,584,005 | 62,486,423 | 312,432,115 |
| -1 | -5 | -23 | -115 | -677 | -3,385 | -4,013 | -15,571 | -20,065 | -77,855 | -92,299 | -461,495 | -2,716,801 | -13,584,005 | -62,486,423 | -312,432,115 |
Here are some more numbers to try:
Try the factor calculator