A:
Positive:
1 x 656853655 x 1313707317 x 386384585 x 772769131 x 501415289 x 227285347 x 189295655 x 1002831445 x 454571735 x 378592227 x 294955899 x 11135
Negative:
-1 x -65685365-5 x -13137073-17 x -3863845-85 x -772769-131 x -501415-289 x -227285-347 x -189295-655 x -100283-1445 x -45457-1735 x -37859-2227 x -29495-5899 x -11135
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 65,685,365, 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 | 65,685,365 | |
| -1 | -65,685,365 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 65,685,365.
Example:
1 x 65,685,365 = 65,685,365
and
-1 x -65,685,365 = 65,685,365
Notice both answers equal 65,685,365
With that explanation out of the way, let's continue. Next, we take the number 65,685,365 and divide it by 2:
65,685,365 ÷ 2 = 32,842,682.5
If the quotient is a whole number, then 2 and 32,842,682.5 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 | 65,685,365 | |
| -1 | -65,685,365 |
Now, we try dividing 65,685,365 by 3:
65,685,365 ÷ 3 = 21,895,121.6667
If the quotient is a whole number, then 3 and 21,895,121.6667 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 | 65,685,365 | |
| -1 | -65,685,365 |
Let's try dividing by 4:
65,685,365 ÷ 4 = 16,421,341.25
If the quotient is a whole number, then 4 and 16,421,341.25 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 | 65,685,365 | |
| -1 | 65,685,365 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 85 | 131 | 289 | 347 | 655 | 1,445 | 1,735 | 2,227 | 5,899 | 11,135 | 29,495 | 37,859 | 45,457 | 100,283 | 189,295 | 227,285 | 501,415 | 772,769 | 3,863,845 | 13,137,073 | 65,685,365 |
| -1 | -5 | -17 | -85 | -131 | -289 | -347 | -655 | -1,445 | -1,735 | -2,227 | -5,899 | -11,135 | -29,495 | -37,859 | -45,457 | -100,283 | -189,295 | -227,285 | -501,415 | -772,769 | -3,863,845 | -13,137,073 | -65,685,365 |
Here are some more numbers to try:
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