A:
Positive:
1 x 15152122711 x 1377465713 x 11655479109 x 1390103143 x 10595891199 x 1263731417 x 1069319721 x 15587
Negative:
-1 x -151521227-11 x -13774657-13 x -11655479-109 x -1390103-143 x -1059589-1199 x -126373-1417 x -106931-9721 x -15587
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 151,521,227, 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 | 151,521,227 | |
| -1 | -151,521,227 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 151,521,227.
Example:
1 x 151,521,227 = 151,521,227
and
-1 x -151,521,227 = 151,521,227
Notice both answers equal 151,521,227
With that explanation out of the way, let's continue. Next, we take the number 151,521,227 and divide it by 2:
151,521,227 ÷ 2 = 75,760,613.5
If the quotient is a whole number, then 2 and 75,760,613.5 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 | 151,521,227 | |
| -1 | -151,521,227 |
Now, we try dividing 151,521,227 by 3:
151,521,227 ÷ 3 = 50,507,075.6667
If the quotient is a whole number, then 3 and 50,507,075.6667 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 | 151,521,227 | |
| -1 | -151,521,227 |
Let's try dividing by 4:
151,521,227 ÷ 4 = 37,880,306.75
If the quotient is a whole number, then 4 and 37,880,306.75 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 | 151,521,227 | |
| -1 | 151,521,227 |
If you did it right, you will end up with this table:
| 1 | 11 | 13 | 109 | 143 | 1,199 | 1,417 | 9,721 | 15,587 | 106,931 | 126,373 | 1,059,589 | 1,390,103 | 11,655,479 | 13,774,657 | 151,521,227 |
| -1 | -11 | -13 | -109 | -143 | -1,199 | -1,417 | -9,721 | -15,587 | -106,931 | -126,373 | -1,059,589 | -1,390,103 | -11,655,479 | -13,774,657 | -151,521,227 |
Here are some more numbers to try:
Try the factor calculator