A:
Positive:
1 x 1533022155 x 3066044311 x 1393656555 x 27873131367 x 1121452039 x 751856835 x 2242910195 x 15037
Negative:
-1 x -153302215-5 x -30660443-11 x -13936565-55 x -2787313-1367 x -112145-2039 x -75185-6835 x -22429-10195 x -15037
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 153,302,215, 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 | 153,302,215 | |
| -1 | -153,302,215 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 153,302,215.
Example:
1 x 153,302,215 = 153,302,215
and
-1 x -153,302,215 = 153,302,215
Notice both answers equal 153,302,215
With that explanation out of the way, let's continue. Next, we take the number 153,302,215 and divide it by 2:
153,302,215 ÷ 2 = 76,651,107.5
If the quotient is a whole number, then 2 and 76,651,107.5 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 | 153,302,215 | |
| -1 | -153,302,215 |
Now, we try dividing 153,302,215 by 3:
153,302,215 ÷ 3 = 51,100,738.3333
If the quotient is a whole number, then 3 and 51,100,738.3333 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 | 153,302,215 | |
| -1 | -153,302,215 |
Let's try dividing by 4:
153,302,215 ÷ 4 = 38,325,553.75
If the quotient is a whole number, then 4 and 38,325,553.75 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 | 153,302,215 | |
| -1 | 153,302,215 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 1,367 | 2,039 | 6,835 | 10,195 | 15,037 | 22,429 | 75,185 | 112,145 | 2,787,313 | 13,936,565 | 30,660,443 | 153,302,215 |
| -1 | -5 | -11 | -55 | -1,367 | -2,039 | -6,835 | -10,195 | -15,037 | -22,429 | -75,185 | -112,145 | -2,787,313 | -13,936,565 | -30,660,443 | -153,302,215 |
Here are some more numbers to try:
Try the factor calculator