A:
Positive:
1 x 1610031355 x 3220062753 x 3037795265 x 607559751 x 214385809 x 1990153755 x 428774045 x 39803
Negative:
-1 x -161003135-5 x -32200627-53 x -3037795-265 x -607559-751 x -214385-809 x -199015-3755 x -42877-4045 x -39803
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 161,003,135, 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 | 161,003,135 | |
| -1 | -161,003,135 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 161,003,135.
Example:
1 x 161,003,135 = 161,003,135
and
-1 x -161,003,135 = 161,003,135
Notice both answers equal 161,003,135
With that explanation out of the way, let's continue. Next, we take the number 161,003,135 and divide it by 2:
161,003,135 ÷ 2 = 80,501,567.5
If the quotient is a whole number, then 2 and 80,501,567.5 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 | 161,003,135 | |
| -1 | -161,003,135 |
Now, we try dividing 161,003,135 by 3:
161,003,135 ÷ 3 = 53,667,711.6667
If the quotient is a whole number, then 3 and 53,667,711.6667 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 | 161,003,135 | |
| -1 | -161,003,135 |
Let's try dividing by 4:
161,003,135 ÷ 4 = 40,250,783.75
If the quotient is a whole number, then 4 and 40,250,783.75 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 | 161,003,135 | |
| -1 | 161,003,135 |
If you did it right, you will end up with this table:
| 1 | 5 | 53 | 265 | 751 | 809 | 3,755 | 4,045 | 39,803 | 42,877 | 199,015 | 214,385 | 607,559 | 3,037,795 | 32,200,627 | 161,003,135 |
| -1 | -5 | -53 | -265 | -751 | -809 | -3,755 | -4,045 | -39,803 | -42,877 | -199,015 | -214,385 | -607,559 | -3,037,795 | -32,200,627 | -161,003,135 |
Here are some more numbers to try:
Try the factor calculator