A:
Positive:
1 x 2113465555 x 422693117 x 3019236535 x 603847349 x 431319559 x 3582145245 x 862639295 x 716429413 x 5117352065 x 1023472891 x 7310514455 x 14621
Negative:
-1 x -211346555-5 x -42269311-7 x -30192365-35 x -6038473-49 x -4313195-59 x -3582145-245 x -862639-295 x -716429-413 x -511735-2065 x -102347-2891 x -73105-14455 x -14621
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 211,346,555, 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 | 211,346,555 | |
| -1 | -211,346,555 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 211,346,555.
Example:
1 x 211,346,555 = 211,346,555
and
-1 x -211,346,555 = 211,346,555
Notice both answers equal 211,346,555
With that explanation out of the way, let's continue. Next, we take the number 211,346,555 and divide it by 2:
211,346,555 ÷ 2 = 105,673,277.5
If the quotient is a whole number, then 2 and 105,673,277.5 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 | 211,346,555 | |
| -1 | -211,346,555 |
Now, we try dividing 211,346,555 by 3:
211,346,555 ÷ 3 = 70,448,851.6667
If the quotient is a whole number, then 3 and 70,448,851.6667 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 | 211,346,555 | |
| -1 | -211,346,555 |
Let's try dividing by 4:
211,346,555 ÷ 4 = 52,836,638.75
If the quotient is a whole number, then 4 and 52,836,638.75 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 | 211,346,555 | |
| -1 | 211,346,555 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 49 | 59 | 245 | 295 | 413 | 2,065 | 2,891 | 14,455 | 14,621 | 73,105 | 102,347 | 511,735 | 716,429 | 862,639 | 3,582,145 | 4,313,195 | 6,038,473 | 30,192,365 | 42,269,311 | 211,346,555 |
| -1 | -5 | -7 | -35 | -49 | -59 | -245 | -295 | -413 | -2,065 | -2,891 | -14,455 | -14,621 | -73,105 | -102,347 | -511,735 | -716,429 | -862,639 | -3,582,145 | -4,313,195 | -6,038,473 | -30,192,365 | -42,269,311 | -211,346,555 |
Here are some more numbers to try:
Try the factor calculator