A:
Positive:
1 x 1273810455 x 2547620911 x 1158009547 x 271023555 x 2316019235 x 542047517 x 2463852585 x 49277
Negative:
-1 x -127381045-5 x -25476209-11 x -11580095-47 x -2710235-55 x -2316019-235 x -542047-517 x -246385-2585 x -49277
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 127,381,045, 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 | 127,381,045 | |
| -1 | -127,381,045 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 127,381,045.
Example:
1 x 127,381,045 = 127,381,045
and
-1 x -127,381,045 = 127,381,045
Notice both answers equal 127,381,045
With that explanation out of the way, let's continue. Next, we take the number 127,381,045 and divide it by 2:
127,381,045 ÷ 2 = 63,690,522.5
If the quotient is a whole number, then 2 and 63,690,522.5 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 | 127,381,045 | |
| -1 | -127,381,045 |
Now, we try dividing 127,381,045 by 3:
127,381,045 ÷ 3 = 42,460,348.3333
If the quotient is a whole number, then 3 and 42,460,348.3333 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 | 127,381,045 | |
| -1 | -127,381,045 |
Let's try dividing by 4:
127,381,045 ÷ 4 = 31,845,261.25
If the quotient is a whole number, then 4 and 31,845,261.25 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 | 127,381,045 | |
| -1 | 127,381,045 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 47 | 55 | 235 | 517 | 2,585 | 49,277 | 246,385 | 542,047 | 2,316,019 | 2,710,235 | 11,580,095 | 25,476,209 | 127,381,045 |
| -1 | -5 | -11 | -47 | -55 | -235 | -517 | -2,585 | -49,277 | -246,385 | -542,047 | -2,316,019 | -2,710,235 | -11,580,095 | -25,476,209 | -127,381,045 |
Here are some more numbers to try:
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