A:
Positive:
1 x 1561241155 x 312248237 x 2230344523 x 678800535 x 4460689115 x 1357601161 x 969715805 x 193943
Negative:
-1 x -156124115-5 x -31224823-7 x -22303445-23 x -6788005-35 x -4460689-115 x -1357601-161 x -969715-805 x -193943
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 156,124,115, 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 | 156,124,115 | |
| -1 | -156,124,115 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 156,124,115.
Example:
1 x 156,124,115 = 156,124,115
and
-1 x -156,124,115 = 156,124,115
Notice both answers equal 156,124,115
With that explanation out of the way, let's continue. Next, we take the number 156,124,115 and divide it by 2:
156,124,115 ÷ 2 = 78,062,057.5
If the quotient is a whole number, then 2 and 78,062,057.5 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 | 156,124,115 | |
| -1 | -156,124,115 |
Now, we try dividing 156,124,115 by 3:
156,124,115 ÷ 3 = 52,041,371.6667
If the quotient is a whole number, then 3 and 52,041,371.6667 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 | 156,124,115 | |
| -1 | -156,124,115 |
Let's try dividing by 4:
156,124,115 ÷ 4 = 39,031,028.75
If the quotient is a whole number, then 4 and 39,031,028.75 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 | 156,124,115 | |
| -1 | 156,124,115 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 23 | 35 | 115 | 161 | 805 | 193,943 | 969,715 | 1,357,601 | 4,460,689 | 6,788,005 | 22,303,445 | 31,224,823 | 156,124,115 |
| -1 | -5 | -7 | -23 | -35 | -115 | -161 | -805 | -193,943 | -969,715 | -1,357,601 | -4,460,689 | -6,788,005 | -22,303,445 | -31,224,823 | -156,124,115 |
Here are some more numbers to try:
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