A:
Positive:
1 x 16011652141 x 390528161 x 262486173 x 2193377877 x 1825732501 x 640212993 x 534974453 x 35957
Negative:
-1 x -160116521-41 x -3905281-61 x -2624861-73 x -2193377-877 x -182573-2501 x -64021-2993 x -53497-4453 x -35957
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 160,116,521, 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 | 160,116,521 | |
| -1 | -160,116,521 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 160,116,521.
Example:
1 x 160,116,521 = 160,116,521
and
-1 x -160,116,521 = 160,116,521
Notice both answers equal 160,116,521
With that explanation out of the way, let's continue. Next, we take the number 160,116,521 and divide it by 2:
160,116,521 ÷ 2 = 80,058,260.5
If the quotient is a whole number, then 2 and 80,058,260.5 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 | 160,116,521 | |
| -1 | -160,116,521 |
Now, we try dividing 160,116,521 by 3:
160,116,521 ÷ 3 = 53,372,173.6667
If the quotient is a whole number, then 3 and 53,372,173.6667 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 | 160,116,521 | |
| -1 | -160,116,521 |
Let's try dividing by 4:
160,116,521 ÷ 4 = 40,029,130.25
If the quotient is a whole number, then 4 and 40,029,130.25 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 | 160,116,521 | |
| -1 | 160,116,521 |
If you did it right, you will end up with this table:
| 1 | 41 | 61 | 73 | 877 | 2,501 | 2,993 | 4,453 | 35,957 | 53,497 | 64,021 | 182,573 | 2,193,377 | 2,624,861 | 3,905,281 | 160,116,521 |
| -1 | -41 | -61 | -73 | -877 | -2,501 | -2,993 | -4,453 | -35,957 | -53,497 | -64,021 | -182,573 | -2,193,377 | -2,624,861 | -3,905,281 | -160,116,521 |
Here are some more numbers to try:
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