A:
Positive:
1 x 984742577 x 1406775143 x 2290099301 x 327157479 x 205583683 x 1441793353 x 293694781 x 20597
Negative:
-1 x -98474257-7 x -14067751-43 x -2290099-301 x -327157-479 x -205583-683 x -144179-3353 x -29369-4781 x -20597
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 98,474,257, 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 | 98,474,257 | |
| -1 | -98,474,257 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 98,474,257.
Example:
1 x 98,474,257 = 98,474,257
and
-1 x -98,474,257 = 98,474,257
Notice both answers equal 98,474,257
With that explanation out of the way, let's continue. Next, we take the number 98,474,257 and divide it by 2:
98,474,257 ÷ 2 = 49,237,128.5
If the quotient is a whole number, then 2 and 49,237,128.5 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 | 98,474,257 | |
| -1 | -98,474,257 |
Now, we try dividing 98,474,257 by 3:
98,474,257 ÷ 3 = 32,824,752.3333
If the quotient is a whole number, then 3 and 32,824,752.3333 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 | 98,474,257 | |
| -1 | -98,474,257 |
Let's try dividing by 4:
98,474,257 ÷ 4 = 24,618,564.25
If the quotient is a whole number, then 4 and 24,618,564.25 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 | 98,474,257 | |
| -1 | 98,474,257 |
If you did it right, you will end up with this table:
| 1 | 7 | 43 | 301 | 479 | 683 | 3,353 | 4,781 | 20,597 | 29,369 | 144,179 | 205,583 | 327,157 | 2,290,099 | 14,067,751 | 98,474,257 |
| -1 | -7 | -43 | -301 | -479 | -683 | -3,353 | -4,781 | -20,597 | -29,369 | -144,179 | -205,583 | -327,157 | -2,290,099 | -14,067,751 | -98,474,257 |
Here are some more numbers to try:
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