A:
Positive:
1 x 681305455 x 136261097 x 973293535 x 194658759 x 1154755295 x 230951413 x 1649652065 x 32993
Negative:
-1 x -68130545-5 x -13626109-7 x -9732935-35 x -1946587-59 x -1154755-295 x -230951-413 x -164965-2065 x -32993
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 68,130,545, 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 | 68,130,545 | |
| -1 | -68,130,545 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 68,130,545.
Example:
1 x 68,130,545 = 68,130,545
and
-1 x -68,130,545 = 68,130,545
Notice both answers equal 68,130,545
With that explanation out of the way, let's continue. Next, we take the number 68,130,545 and divide it by 2:
68,130,545 ÷ 2 = 34,065,272.5
If the quotient is a whole number, then 2 and 34,065,272.5 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 | 68,130,545 | |
| -1 | -68,130,545 |
Now, we try dividing 68,130,545 by 3:
68,130,545 ÷ 3 = 22,710,181.6667
If the quotient is a whole number, then 3 and 22,710,181.6667 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 | 68,130,545 | |
| -1 | -68,130,545 |
Let's try dividing by 4:
68,130,545 ÷ 4 = 17,032,636.25
If the quotient is a whole number, then 4 and 17,032,636.25 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 | 68,130,545 | |
| -1 | 68,130,545 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 59 | 295 | 413 | 2,065 | 32,993 | 164,965 | 230,951 | 1,154,755 | 1,946,587 | 9,732,935 | 13,626,109 | 68,130,545 |
| -1 | -5 | -7 | -35 | -59 | -295 | -413 | -2,065 | -32,993 | -164,965 | -230,951 | -1,154,755 | -1,946,587 | -9,732,935 | -13,626,109 | -68,130,545 |
Here are some more numbers to try:
Try the factor calculator