A:
Positive:
1 x 1277023155 x 2554046313 x 982325565 x 196465179 x 1616485169 x 755635395 x 323297845 x 1511271027 x 1243451913 x 667555135 x 248699565 x 13351
Negative:
-1 x -127702315-5 x -25540463-13 x -9823255-65 x -1964651-79 x -1616485-169 x -755635-395 x -323297-845 x -151127-1027 x -124345-1913 x -66755-5135 x -24869-9565 x -13351
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 127,702,315, 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 | 127,702,315 | |
| -1 | -127,702,315 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 127,702,315.
Example:
1 x 127,702,315 = 127,702,315
and
-1 x -127,702,315 = 127,702,315
Notice both answers equal 127,702,315
With that explanation out of the way, let's continue. Next, we take the number 127,702,315 and divide it by 2:
127,702,315 ÷ 2 = 63,851,157.5
If the quotient is a whole number, then 2 and 63,851,157.5 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 | 127,702,315 | |
| -1 | -127,702,315 |
Now, we try dividing 127,702,315 by 3:
127,702,315 ÷ 3 = 42,567,438.3333
If the quotient is a whole number, then 3 and 42,567,438.3333 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 | 127,702,315 | |
| -1 | -127,702,315 |
Let's try dividing by 4:
127,702,315 ÷ 4 = 31,925,578.75
If the quotient is a whole number, then 4 and 31,925,578.75 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 | 127,702,315 | |
| -1 | 127,702,315 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 79 | 169 | 395 | 845 | 1,027 | 1,913 | 5,135 | 9,565 | 13,351 | 24,869 | 66,755 | 124,345 | 151,127 | 323,297 | 755,635 | 1,616,485 | 1,964,651 | 9,823,255 | 25,540,463 | 127,702,315 |
| -1 | -5 | -13 | -65 | -79 | -169 | -395 | -845 | -1,027 | -1,913 | -5,135 | -9,565 | -13,351 | -24,869 | -66,755 | -124,345 | -151,127 | -323,297 | -755,635 | -1,616,485 | -1,964,651 | -9,823,255 | -25,540,463 | -127,702,315 |
Here are some more numbers to try:
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