A:
Positive:
1 x 217701055 x 43540217 x 311001519 x 114579535 x 62200395 x 229159133 x 163685361 x 60305665 x 327371723 x 126351805 x 120612527 x 8615
Negative:
-1 x -21770105-5 x -4354021-7 x -3110015-19 x -1145795-35 x -622003-95 x -229159-133 x -163685-361 x -60305-665 x -32737-1723 x -12635-1805 x -12061-2527 x -8615
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 21,770,105, 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 | 21,770,105 | |
| -1 | -21,770,105 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 21,770,105.
Example:
1 x 21,770,105 = 21,770,105
and
-1 x -21,770,105 = 21,770,105
Notice both answers equal 21,770,105
With that explanation out of the way, let's continue. Next, we take the number 21,770,105 and divide it by 2:
21,770,105 ÷ 2 = 10,885,052.5
If the quotient is a whole number, then 2 and 10,885,052.5 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 | 21,770,105 | |
| -1 | -21,770,105 |
Now, we try dividing 21,770,105 by 3:
21,770,105 ÷ 3 = 7,256,701.6667
If the quotient is a whole number, then 3 and 7,256,701.6667 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 | 21,770,105 | |
| -1 | -21,770,105 |
Let's try dividing by 4:
21,770,105 ÷ 4 = 5,442,526.25
If the quotient is a whole number, then 4 and 5,442,526.25 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 | 21,770,105 | |
| -1 | 21,770,105 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 19 | 35 | 95 | 133 | 361 | 665 | 1,723 | 1,805 | 2,527 | 8,615 | 12,061 | 12,635 | 32,737 | 60,305 | 163,685 | 229,159 | 622,003 | 1,145,795 | 3,110,015 | 4,354,021 | 21,770,105 |
| -1 | -5 | -7 | -19 | -35 | -95 | -133 | -361 | -665 | -1,723 | -1,805 | -2,527 | -8,615 | -12,061 | -12,635 | -32,737 | -60,305 | -163,685 | -229,159 | -622,003 | -1,145,795 | -3,110,015 | -4,354,021 | -21,770,105 |
Here are some more numbers to try:
Try the factor calculator