A:
Positive:
1 x 2044552517 x 2920789311 x 1858684113 x 1572732777 x 265526391 x 2246761143 x 14297571001 x 204251
Negative:
-1 x -204455251-7 x -29207893-11 x -18586841-13 x -15727327-77 x -2655263-91 x -2246761-143 x -1429757-1001 x -204251
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 204,455,251, 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 | 204,455,251 | |
| -1 | -204,455,251 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 204,455,251.
Example:
1 x 204,455,251 = 204,455,251
and
-1 x -204,455,251 = 204,455,251
Notice both answers equal 204,455,251
With that explanation out of the way, let's continue. Next, we take the number 204,455,251 and divide it by 2:
204,455,251 ÷ 2 = 102,227,625.5
If the quotient is a whole number, then 2 and 102,227,625.5 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 | 204,455,251 | |
| -1 | -204,455,251 |
Now, we try dividing 204,455,251 by 3:
204,455,251 ÷ 3 = 68,151,750.3333
If the quotient is a whole number, then 3 and 68,151,750.3333 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 | 204,455,251 | |
| -1 | -204,455,251 |
Let's try dividing by 4:
204,455,251 ÷ 4 = 51,113,812.75
If the quotient is a whole number, then 4 and 51,113,812.75 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 | 204,455,251 | |
| -1 | 204,455,251 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 13 | 77 | 91 | 143 | 1,001 | 204,251 | 1,429,757 | 2,246,761 | 2,655,263 | 15,727,327 | 18,586,841 | 29,207,893 | 204,455,251 |
| -1 | -7 | -11 | -13 | -77 | -91 | -143 | -1,001 | -204,251 | -1,429,757 | -2,246,761 | -2,655,263 | -15,727,327 | -18,586,841 | -29,207,893 | -204,455,251 |
Here are some more numbers to try:
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