A:
Positive:
1 x 656432655 x 1312865323 x 2854055115 x 570811283 x 2319551415 x 463912017 x 325456509 x 10085
Negative:
-1 x -65643265-5 x -13128653-23 x -2854055-115 x -570811-283 x -231955-1415 x -46391-2017 x -32545-6509 x -10085
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 65,643,265, 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 | 65,643,265 | |
| -1 | -65,643,265 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 65,643,265.
Example:
1 x 65,643,265 = 65,643,265
and
-1 x -65,643,265 = 65,643,265
Notice both answers equal 65,643,265
With that explanation out of the way, let's continue. Next, we take the number 65,643,265 and divide it by 2:
65,643,265 ÷ 2 = 32,821,632.5
If the quotient is a whole number, then 2 and 32,821,632.5 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 | 65,643,265 | |
| -1 | -65,643,265 |
Now, we try dividing 65,643,265 by 3:
65,643,265 ÷ 3 = 21,881,088.3333
If the quotient is a whole number, then 3 and 21,881,088.3333 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 | 65,643,265 | |
| -1 | -65,643,265 |
Let's try dividing by 4:
65,643,265 ÷ 4 = 16,410,816.25
If the quotient is a whole number, then 4 and 16,410,816.25 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 | 65,643,265 | |
| -1 | 65,643,265 |
If you did it right, you will end up with this table:
| 1 | 5 | 23 | 115 | 283 | 1,415 | 2,017 | 6,509 | 10,085 | 32,545 | 46,391 | 231,955 | 570,811 | 2,854,055 | 13,128,653 | 65,643,265 |
| -1 | -5 | -23 | -115 | -283 | -1,415 | -2,017 | -6,509 | -10,085 | -32,545 | -46,391 | -231,955 | -570,811 | -2,854,055 | -13,128,653 | -65,643,265 |
Here are some more numbers to try:
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