A:
Positive:
1 x 2372516517 x 3389309313 x 1825012719 x 1248692991 x 2607161133 x 1783847247 x 9605331729 x 137219
Negative:
-1 x -237251651-7 x -33893093-13 x -18250127-19 x -12486929-91 x -2607161-133 x -1783847-247 x -960533-1729 x -137219
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 237,251,651, 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 | 237,251,651 | |
| -1 | -237,251,651 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 237,251,651.
Example:
1 x 237,251,651 = 237,251,651
and
-1 x -237,251,651 = 237,251,651
Notice both answers equal 237,251,651
With that explanation out of the way, let's continue. Next, we take the number 237,251,651 and divide it by 2:
237,251,651 ÷ 2 = 118,625,825.5
If the quotient is a whole number, then 2 and 118,625,825.5 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 | 237,251,651 | |
| -1 | -237,251,651 |
Now, we try dividing 237,251,651 by 3:
237,251,651 ÷ 3 = 79,083,883.6667
If the quotient is a whole number, then 3 and 79,083,883.6667 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 | 237,251,651 | |
| -1 | -237,251,651 |
Let's try dividing by 4:
237,251,651 ÷ 4 = 59,312,912.75
If the quotient is a whole number, then 4 and 59,312,912.75 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 | 237,251,651 | |
| -1 | 237,251,651 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 19 | 91 | 133 | 247 | 1,729 | 137,219 | 960,533 | 1,783,847 | 2,607,161 | 12,486,929 | 18,250,127 | 33,893,093 | 237,251,651 |
| -1 | -7 | -13 | -19 | -91 | -133 | -247 | -1,729 | -137,219 | -960,533 | -1,783,847 | -2,607,161 | -12,486,929 | -18,250,127 | -33,893,093 | -237,251,651 |
Here are some more numbers to try:
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