A:
Positive:
1 x 2213011017 x 3161444323 x 962178749 x 4516349161 x 1374541179 x 12363191097 x 2017331127 x 1963631253 x 1766174117 x 537537679 x 288198771 x 25231
Negative:
-1 x -221301101-7 x -31614443-23 x -9621787-49 x -4516349-161 x -1374541-179 x -1236319-1097 x -201733-1127 x -196363-1253 x -176617-4117 x -53753-7679 x -28819-8771 x -25231
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 221,301,101, 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 | 221,301,101 | |
| -1 | -221,301,101 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 221,301,101.
Example:
1 x 221,301,101 = 221,301,101
and
-1 x -221,301,101 = 221,301,101
Notice both answers equal 221,301,101
With that explanation out of the way, let's continue. Next, we take the number 221,301,101 and divide it by 2:
221,301,101 ÷ 2 = 110,650,550.5
If the quotient is a whole number, then 2 and 110,650,550.5 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 | 221,301,101 | |
| -1 | -221,301,101 |
Now, we try dividing 221,301,101 by 3:
221,301,101 ÷ 3 = 73,767,033.6667
If the quotient is a whole number, then 3 and 73,767,033.6667 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 | 221,301,101 | |
| -1 | -221,301,101 |
Let's try dividing by 4:
221,301,101 ÷ 4 = 55,325,275.25
If the quotient is a whole number, then 4 and 55,325,275.25 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 | 221,301,101 | |
| -1 | 221,301,101 |
If you did it right, you will end up with this table:
| 1 | 7 | 23 | 49 | 161 | 179 | 1,097 | 1,127 | 1,253 | 4,117 | 7,679 | 8,771 | 25,231 | 28,819 | 53,753 | 176,617 | 196,363 | 201,733 | 1,236,319 | 1,374,541 | 4,516,349 | 9,621,787 | 31,614,443 | 221,301,101 |
| -1 | -7 | -23 | -49 | -161 | -179 | -1,097 | -1,127 | -1,253 | -4,117 | -7,679 | -8,771 | -25,231 | -28,819 | -53,753 | -176,617 | -196,363 | -201,733 | -1,236,319 | -1,374,541 | -4,516,349 | -9,621,787 | -31,614,443 | -221,301,101 |
Here are some more numbers to try:
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