A:
Positive:
1 x 2116332555 x 4232665117 x 1244901585 x 2489803167 x 1267265289 x 732295835 x 253453877 x 2413151445 x 1464592839 x 745454385 x 4826314195 x 14909
Negative:
-1 x -211633255-5 x -42326651-17 x -12449015-85 x -2489803-167 x -1267265-289 x -732295-835 x -253453-877 x -241315-1445 x -146459-2839 x -74545-4385 x -48263-14195 x -14909
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 211,633,255, 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 | 211,633,255 | |
| -1 | -211,633,255 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 211,633,255.
Example:
1 x 211,633,255 = 211,633,255
and
-1 x -211,633,255 = 211,633,255
Notice both answers equal 211,633,255
With that explanation out of the way, let's continue. Next, we take the number 211,633,255 and divide it by 2:
211,633,255 ÷ 2 = 105,816,627.5
If the quotient is a whole number, then 2 and 105,816,627.5 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 | 211,633,255 | |
| -1 | -211,633,255 |
Now, we try dividing 211,633,255 by 3:
211,633,255 ÷ 3 = 70,544,418.3333
If the quotient is a whole number, then 3 and 70,544,418.3333 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 | 211,633,255 | |
| -1 | -211,633,255 |
Let's try dividing by 4:
211,633,255 ÷ 4 = 52,908,313.75
If the quotient is a whole number, then 4 and 52,908,313.75 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 | 211,633,255 | |
| -1 | 211,633,255 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 85 | 167 | 289 | 835 | 877 | 1,445 | 2,839 | 4,385 | 14,195 | 14,909 | 48,263 | 74,545 | 146,459 | 241,315 | 253,453 | 732,295 | 1,267,265 | 2,489,803 | 12,449,015 | 42,326,651 | 211,633,255 |
| -1 | -5 | -17 | -85 | -167 | -289 | -835 | -877 | -1,445 | -2,839 | -4,385 | -14,195 | -14,909 | -48,263 | -74,545 | -146,459 | -241,315 | -253,453 | -732,295 | -1,267,265 | -2,489,803 | -12,449,015 | -42,326,651 | -211,633,255 |
Here are some more numbers to try:
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