A:
Positive:
1 x 1564228855 x 3128457723 x 6800995115 x 1360199653 x 2395452083 x 750953265 x 4790910415 x 15019
Negative:
-1 x -156422885-5 x -31284577-23 x -6800995-115 x -1360199-653 x -239545-2083 x -75095-3265 x -47909-10415 x -15019
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 156,422,885, 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 | 156,422,885 | |
| -1 | -156,422,885 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 156,422,885.
Example:
1 x 156,422,885 = 156,422,885
and
-1 x -156,422,885 = 156,422,885
Notice both answers equal 156,422,885
With that explanation out of the way, let's continue. Next, we take the number 156,422,885 and divide it by 2:
156,422,885 ÷ 2 = 78,211,442.5
If the quotient is a whole number, then 2 and 78,211,442.5 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 | 156,422,885 | |
| -1 | -156,422,885 |
Now, we try dividing 156,422,885 by 3:
156,422,885 ÷ 3 = 52,140,961.6667
If the quotient is a whole number, then 3 and 52,140,961.6667 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 | 156,422,885 | |
| -1 | -156,422,885 |
Let's try dividing by 4:
156,422,885 ÷ 4 = 39,105,721.25
If the quotient is a whole number, then 4 and 39,105,721.25 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 | 156,422,885 | |
| -1 | 156,422,885 |
If you did it right, you will end up with this table:
| 1 | 5 | 23 | 115 | 653 | 2,083 | 3,265 | 10,415 | 15,019 | 47,909 | 75,095 | 239,545 | 1,360,199 | 6,800,995 | 31,284,577 | 156,422,885 |
| -1 | -5 | -23 | -115 | -653 | -2,083 | -3,265 | -10,415 | -15,019 | -47,909 | -75,095 | -239,545 | -1,360,199 | -6,800,995 | -31,284,577 | -156,422,885 |
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