A:
Positive:
1 x 1601061555 x 3202123111 x 1455510555 x 291102173 x 2193235365 x 438647803 x 1993854015 x 39877
Negative:
-1 x -160106155-5 x -32021231-11 x -14555105-55 x -2911021-73 x -2193235-365 x -438647-803 x -199385-4015 x -39877
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 160,106,155, 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 | 160,106,155 | |
| -1 | -160,106,155 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 160,106,155.
Example:
1 x 160,106,155 = 160,106,155
and
-1 x -160,106,155 = 160,106,155
Notice both answers equal 160,106,155
With that explanation out of the way, let's continue. Next, we take the number 160,106,155 and divide it by 2:
160,106,155 ÷ 2 = 80,053,077.5
If the quotient is a whole number, then 2 and 80,053,077.5 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 | 160,106,155 | |
| -1 | -160,106,155 |
Now, we try dividing 160,106,155 by 3:
160,106,155 ÷ 3 = 53,368,718.3333
If the quotient is a whole number, then 3 and 53,368,718.3333 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 | 160,106,155 | |
| -1 | -160,106,155 |
Let's try dividing by 4:
160,106,155 ÷ 4 = 40,026,538.75
If the quotient is a whole number, then 4 and 40,026,538.75 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 | 160,106,155 | |
| -1 | 160,106,155 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 73 | 365 | 803 | 4,015 | 39,877 | 199,385 | 438,647 | 2,193,235 | 2,911,021 | 14,555,105 | 32,021,231 | 160,106,155 |
| -1 | -5 | -11 | -55 | -73 | -365 | -803 | -4,015 | -39,877 | -199,385 | -438,647 | -2,193,235 | -2,911,021 | -14,555,105 | -32,021,231 | -160,106,155 |
Here are some more numbers to try:
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