A:
Positive:
1 x 6560781711 x 596434719 x 345304347 x 1395911209 x 313913517 x 126901893 x 734696679 x 9823
Negative:
-1 x -65607817-11 x -5964347-19 x -3453043-47 x -1395911-209 x -313913-517 x -126901-893 x -73469-6679 x -9823
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 65,607,817, 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 | 65,607,817 | |
| -1 | -65,607,817 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 65,607,817.
Example:
1 x 65,607,817 = 65,607,817
and
-1 x -65,607,817 = 65,607,817
Notice both answers equal 65,607,817
With that explanation out of the way, let's continue. Next, we take the number 65,607,817 and divide it by 2:
65,607,817 ÷ 2 = 32,803,908.5
If the quotient is a whole number, then 2 and 32,803,908.5 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 | 65,607,817 | |
| -1 | -65,607,817 |
Now, we try dividing 65,607,817 by 3:
65,607,817 ÷ 3 = 21,869,272.3333
If the quotient is a whole number, then 3 and 21,869,272.3333 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 | 65,607,817 | |
| -1 | -65,607,817 |
Let's try dividing by 4:
65,607,817 ÷ 4 = 16,401,954.25
If the quotient is a whole number, then 4 and 16,401,954.25 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 | 65,607,817 | |
| -1 | 65,607,817 |
If you did it right, you will end up with this table:
| 1 | 11 | 19 | 47 | 209 | 517 | 893 | 6,679 | 9,823 | 73,469 | 126,901 | 313,913 | 1,395,911 | 3,453,043 | 5,964,347 | 65,607,817 |
| -1 | -11 | -19 | -47 | -209 | -517 | -893 | -6,679 | -9,823 | -73,469 | -126,901 | -313,913 | -1,395,911 | -3,453,043 | -5,964,347 | -65,607,817 |
Here are some more numbers to try:
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