A:
Positive:
1 x 681416055 x 136283217 x 973451535 x 194690337 x 184166549 x 1390645185 x 368333245 x 278129259 x 2630951295 x 526191813 x 375857517 x 9065
Negative:
-1 x -68141605-5 x -13628321-7 x -9734515-35 x -1946903-37 x -1841665-49 x -1390645-185 x -368333-245 x -278129-259 x -263095-1295 x -52619-1813 x -37585-7517 x -9065
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 68,141,605, 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 | 68,141,605 | |
| -1 | -68,141,605 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 68,141,605.
Example:
1 x 68,141,605 = 68,141,605
and
-1 x -68,141,605 = 68,141,605
Notice both answers equal 68,141,605
With that explanation out of the way, let's continue. Next, we take the number 68,141,605 and divide it by 2:
68,141,605 ÷ 2 = 34,070,802.5
If the quotient is a whole number, then 2 and 34,070,802.5 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 | 68,141,605 | |
| -1 | -68,141,605 |
Now, we try dividing 68,141,605 by 3:
68,141,605 ÷ 3 = 22,713,868.3333
If the quotient is a whole number, then 3 and 22,713,868.3333 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 | 68,141,605 | |
| -1 | -68,141,605 |
Let's try dividing by 4:
68,141,605 ÷ 4 = 17,035,401.25
If the quotient is a whole number, then 4 and 17,035,401.25 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 | 68,141,605 | |
| -1 | 68,141,605 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 37 | 49 | 185 | 245 | 259 | 1,295 | 1,813 | 7,517 | 9,065 | 37,585 | 52,619 | 263,095 | 278,129 | 368,333 | 1,390,645 | 1,841,665 | 1,946,903 | 9,734,515 | 13,628,321 | 68,141,605 |
| -1 | -5 | -7 | -35 | -37 | -49 | -185 | -245 | -259 | -1,295 | -1,813 | -7,517 | -9,065 | -37,585 | -52,619 | -263,095 | -278,129 | -368,333 | -1,390,645 | -1,841,665 | -1,946,903 | -9,734,515 | -13,628,321 | -68,141,605 |
Here are some more numbers to try:
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