A:
Positive:
1 x 2196052755 x 4392105525 x 878421189 x 2467475229 x 958975431 x 509525445 x 4934951145 x 1917952155 x 1019052225 x 986995725 x 3835910775 x 20381
Negative:
-1 x -219605275-5 x -43921055-25 x -8784211-89 x -2467475-229 x -958975-431 x -509525-445 x -493495-1145 x -191795-2155 x -101905-2225 x -98699-5725 x -38359-10775 x -20381
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 219,605,275, 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 | 219,605,275 | |
| -1 | -219,605,275 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 219,605,275.
Example:
1 x 219,605,275 = 219,605,275
and
-1 x -219,605,275 = 219,605,275
Notice both answers equal 219,605,275
With that explanation out of the way, let's continue. Next, we take the number 219,605,275 and divide it by 2:
219,605,275 ÷ 2 = 109,802,637.5
If the quotient is a whole number, then 2 and 109,802,637.5 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 | 219,605,275 | |
| -1 | -219,605,275 |
Now, we try dividing 219,605,275 by 3:
219,605,275 ÷ 3 = 73,201,758.3333
If the quotient is a whole number, then 3 and 73,201,758.3333 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 | 219,605,275 | |
| -1 | -219,605,275 |
Let's try dividing by 4:
219,605,275 ÷ 4 = 54,901,318.75
If the quotient is a whole number, then 4 and 54,901,318.75 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 | 219,605,275 | |
| -1 | 219,605,275 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 89 | 229 | 431 | 445 | 1,145 | 2,155 | 2,225 | 5,725 | 10,775 | 20,381 | 38,359 | 98,699 | 101,905 | 191,795 | 493,495 | 509,525 | 958,975 | 2,467,475 | 8,784,211 | 43,921,055 | 219,605,275 |
| -1 | -5 | -25 | -89 | -229 | -431 | -445 | -1,145 | -2,155 | -2,225 | -5,725 | -10,775 | -20,381 | -38,359 | -98,699 | -101,905 | -191,795 | -493,495 | -509,525 | -958,975 | -2,467,475 | -8,784,211 | -43,921,055 | -219,605,275 |
Here are some more numbers to try:
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