A:
Positive:
1 x 6826725113 x 525132783 x 822497151 x 452101419 x 1629291079 x 632691963 x 347775447 x 12533
Negative:
-1 x -68267251-13 x -5251327-83 x -822497-151 x -452101-419 x -162929-1079 x -63269-1963 x -34777-5447 x -12533
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 68,267,251, 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 | 68,267,251 | |
| -1 | -68,267,251 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 68,267,251.
Example:
1 x 68,267,251 = 68,267,251
and
-1 x -68,267,251 = 68,267,251
Notice both answers equal 68,267,251
With that explanation out of the way, let's continue. Next, we take the number 68,267,251 and divide it by 2:
68,267,251 ÷ 2 = 34,133,625.5
If the quotient is a whole number, then 2 and 34,133,625.5 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 | 68,267,251 | |
| -1 | -68,267,251 |
Now, we try dividing 68,267,251 by 3:
68,267,251 ÷ 3 = 22,755,750.3333
If the quotient is a whole number, then 3 and 22,755,750.3333 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 | 68,267,251 | |
| -1 | -68,267,251 |
Let's try dividing by 4:
68,267,251 ÷ 4 = 17,066,812.75
If the quotient is a whole number, then 4 and 17,066,812.75 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 | 68,267,251 | |
| -1 | 68,267,251 |
If you did it right, you will end up with this table:
| 1 | 13 | 83 | 151 | 419 | 1,079 | 1,963 | 5,447 | 12,533 | 34,777 | 63,269 | 162,929 | 452,101 | 822,497 | 5,251,327 | 68,267,251 |
| -1 | -13 | -83 | -151 | -419 | -1,079 | -1,963 | -5,447 | -12,533 | -34,777 | -63,269 | -162,929 | -452,101 | -822,497 | -5,251,327 | -68,267,251 |
Here are some more numbers to try:
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