A:
Positive:
1 x 651624655 x 1303249331 x 2102015107 x 608995155 x 420403535 x 1217993317 x 196453929 x 16585
Negative:
-1 x -65162465-5 x -13032493-31 x -2102015-107 x -608995-155 x -420403-535 x -121799-3317 x -19645-3929 x -16585
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 65,162,465, 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 | 65,162,465 | |
| -1 | -65,162,465 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 65,162,465.
Example:
1 x 65,162,465 = 65,162,465
and
-1 x -65,162,465 = 65,162,465
Notice both answers equal 65,162,465
With that explanation out of the way, let's continue. Next, we take the number 65,162,465 and divide it by 2:
65,162,465 ÷ 2 = 32,581,232.5
If the quotient is a whole number, then 2 and 32,581,232.5 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 | 65,162,465 | |
| -1 | -65,162,465 |
Now, we try dividing 65,162,465 by 3:
65,162,465 ÷ 3 = 21,720,821.6667
If the quotient is a whole number, then 3 and 21,720,821.6667 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 | 65,162,465 | |
| -1 | -65,162,465 |
Let's try dividing by 4:
65,162,465 ÷ 4 = 16,290,616.25
If the quotient is a whole number, then 4 and 16,290,616.25 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 | 65,162,465 | |
| -1 | 65,162,465 |
If you did it right, you will end up with this table:
| 1 | 5 | 31 | 107 | 155 | 535 | 3,317 | 3,929 | 16,585 | 19,645 | 121,799 | 420,403 | 608,995 | 2,102,015 | 13,032,493 | 65,162,465 |
| -1 | -5 | -31 | -107 | -155 | -535 | -3,317 | -3,929 | -16,585 | -19,645 | -121,799 | -420,403 | -608,995 | -2,102,015 | -13,032,493 | -65,162,465 |
Here are some more numbers to try:
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