A:
Positive:
1 x 1610744455 x 322148897 x 2301063535 x 460212741 x 3928645205 x 785729287 x 5612351435 x 112247
Negative:
-1 x -161074445-5 x -32214889-7 x -23010635-35 x -4602127-41 x -3928645-205 x -785729-287 x -561235-1435 x -112247
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 161,074,445, 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 | 161,074,445 | |
| -1 | -161,074,445 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 161,074,445.
Example:
1 x 161,074,445 = 161,074,445
and
-1 x -161,074,445 = 161,074,445
Notice both answers equal 161,074,445
With that explanation out of the way, let's continue. Next, we take the number 161,074,445 and divide it by 2:
161,074,445 ÷ 2 = 80,537,222.5
If the quotient is a whole number, then 2 and 80,537,222.5 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 | 161,074,445 | |
| -1 | -161,074,445 |
Now, we try dividing 161,074,445 by 3:
161,074,445 ÷ 3 = 53,691,481.6667
If the quotient is a whole number, then 3 and 53,691,481.6667 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 | 161,074,445 | |
| -1 | -161,074,445 |
Let's try dividing by 4:
161,074,445 ÷ 4 = 40,268,611.25
If the quotient is a whole number, then 4 and 40,268,611.25 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 | 161,074,445 | |
| -1 | 161,074,445 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 41 | 205 | 287 | 1,435 | 112,247 | 561,235 | 785,729 | 3,928,645 | 4,602,127 | 23,010,635 | 32,214,889 | 161,074,445 |
| -1 | -5 | -7 | -35 | -41 | -205 | -287 | -1,435 | -112,247 | -561,235 | -785,729 | -3,928,645 | -4,602,127 | -23,010,635 | -32,214,889 | -161,074,445 |
Here are some more numbers to try:
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