A:
Positive:
1 x 2468542517 x 3526489319 x 1299232961 x 4046791133 x 1856047427 x 5781131159 x 2129898113 x 30427
Negative:
-1 x -246854251-7 x -35264893-19 x -12992329-61 x -4046791-133 x -1856047-427 x -578113-1159 x -212989-8113 x -30427
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 246,854,251, 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 | 246,854,251 | |
| -1 | -246,854,251 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 246,854,251.
Example:
1 x 246,854,251 = 246,854,251
and
-1 x -246,854,251 = 246,854,251
Notice both answers equal 246,854,251
With that explanation out of the way, let's continue. Next, we take the number 246,854,251 and divide it by 2:
246,854,251 ÷ 2 = 123,427,125.5
If the quotient is a whole number, then 2 and 123,427,125.5 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 | 246,854,251 | |
| -1 | -246,854,251 |
Now, we try dividing 246,854,251 by 3:
246,854,251 ÷ 3 = 82,284,750.3333
If the quotient is a whole number, then 3 and 82,284,750.3333 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 | 246,854,251 | |
| -1 | -246,854,251 |
Let's try dividing by 4:
246,854,251 ÷ 4 = 61,713,562.75
If the quotient is a whole number, then 4 and 61,713,562.75 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 | 246,854,251 | |
| -1 | 246,854,251 |
If you did it right, you will end up with this table:
| 1 | 7 | 19 | 61 | 133 | 427 | 1,159 | 8,113 | 30,427 | 212,989 | 578,113 | 1,856,047 | 4,046,791 | 12,992,329 | 35,264,893 | 246,854,251 |
| -1 | -7 | -19 | -61 | -133 | -427 | -1,159 | -8,113 | -30,427 | -212,989 | -578,113 | -1,856,047 | -4,046,791 | -12,992,329 | -35,264,893 | -246,854,251 |
Here are some more numbers to try:
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