A:
Positive:
1 x 2916882111 x 265171117 x 1715813151 x 193171187 x 1559831033 x 282371661 x 175612567 x 11363
Negative:
-1 x -29168821-11 x -2651711-17 x -1715813-151 x -193171-187 x -155983-1033 x -28237-1661 x -17561-2567 x -11363
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 29,168,821, 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 | 29,168,821 | |
| -1 | -29,168,821 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 29,168,821.
Example:
1 x 29,168,821 = 29,168,821
and
-1 x -29,168,821 = 29,168,821
Notice both answers equal 29,168,821
With that explanation out of the way, let's continue. Next, we take the number 29,168,821 and divide it by 2:
29,168,821 ÷ 2 = 14,584,410.5
If the quotient is a whole number, then 2 and 14,584,410.5 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 | 29,168,821 | |
| -1 | -29,168,821 |
Now, we try dividing 29,168,821 by 3:
29,168,821 ÷ 3 = 9,722,940.3333
If the quotient is a whole number, then 3 and 9,722,940.3333 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 | 29,168,821 | |
| -1 | -29,168,821 |
Let's try dividing by 4:
29,168,821 ÷ 4 = 7,292,205.25
If the quotient is a whole number, then 4 and 7,292,205.25 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 | 29,168,821 | |
| -1 | 29,168,821 |
If you did it right, you will end up with this table:
| 1 | 11 | 17 | 151 | 187 | 1,033 | 1,661 | 2,567 | 11,363 | 17,561 | 28,237 | 155,983 | 193,171 | 1,715,813 | 2,651,711 | 29,168,821 |
| -1 | -11 | -17 | -151 | -187 | -1,033 | -1,661 | -2,567 | -11,363 | -17,561 | -28,237 | -155,983 | -193,171 | -1,715,813 | -2,651,711 | -29,168,821 |
Here are some more numbers to try:
Try the factor calculator