A:
Positive:
1 x 10540201111 x 958200113 x 810784737 x 2848703121 x 871091143 x 737077407 x 258973481 x 2191311573 x 670071811 x 582014477 x 235435291 x 19921
Negative:
-1 x -105402011-11 x -9582001-13 x -8107847-37 x -2848703-121 x -871091-143 x -737077-407 x -258973-481 x -219131-1573 x -67007-1811 x -58201-4477 x -23543-5291 x -19921
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 105,402,011, 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 | 105,402,011 | |
| -1 | -105,402,011 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 105,402,011.
Example:
1 x 105,402,011 = 105,402,011
and
-1 x -105,402,011 = 105,402,011
Notice both answers equal 105,402,011
With that explanation out of the way, let's continue. Next, we take the number 105,402,011 and divide it by 2:
105,402,011 ÷ 2 = 52,701,005.5
If the quotient is a whole number, then 2 and 52,701,005.5 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 | 105,402,011 | |
| -1 | -105,402,011 |
Now, we try dividing 105,402,011 by 3:
105,402,011 ÷ 3 = 35,134,003.6667
If the quotient is a whole number, then 3 and 35,134,003.6667 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 | 105,402,011 | |
| -1 | -105,402,011 |
Let's try dividing by 4:
105,402,011 ÷ 4 = 26,350,502.75
If the quotient is a whole number, then 4 and 26,350,502.75 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 | 105,402,011 | |
| -1 | 105,402,011 |
If you did it right, you will end up with this table:
| 1 | 11 | 13 | 37 | 121 | 143 | 407 | 481 | 1,573 | 1,811 | 4,477 | 5,291 | 19,921 | 23,543 | 58,201 | 67,007 | 219,131 | 258,973 | 737,077 | 871,091 | 2,848,703 | 8,107,847 | 9,582,001 | 105,402,011 |
| -1 | -11 | -13 | -37 | -121 | -143 | -407 | -481 | -1,573 | -1,811 | -4,477 | -5,291 | -19,921 | -23,543 | -58,201 | -67,007 | -219,131 | -258,973 | -737,077 | -871,091 | -2,848,703 | -8,107,847 | -9,582,001 | -105,402,011 |
Here are some more numbers to try:
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