A:
Positive:
1 x 15311164713 x 1177781953 x 288889961 x 2510027689 x 222223793 x 1930793233 x 473593643 x 42029
Negative:
-1 x -153111647-13 x -11777819-53 x -2888899-61 x -2510027-689 x -222223-793 x -193079-3233 x -47359-3643 x -42029
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 153,111,647, 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 | 153,111,647 | |
| -1 | -153,111,647 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 153,111,647.
Example:
1 x 153,111,647 = 153,111,647
and
-1 x -153,111,647 = 153,111,647
Notice both answers equal 153,111,647
With that explanation out of the way, let's continue. Next, we take the number 153,111,647 and divide it by 2:
153,111,647 ÷ 2 = 76,555,823.5
If the quotient is a whole number, then 2 and 76,555,823.5 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 | 153,111,647 | |
| -1 | -153,111,647 |
Now, we try dividing 153,111,647 by 3:
153,111,647 ÷ 3 = 51,037,215.6667
If the quotient is a whole number, then 3 and 51,037,215.6667 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 | 153,111,647 | |
| -1 | -153,111,647 |
Let's try dividing by 4:
153,111,647 ÷ 4 = 38,277,911.75
If the quotient is a whole number, then 4 and 38,277,911.75 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 | 153,111,647 | |
| -1 | 153,111,647 |
If you did it right, you will end up with this table:
| 1 | 13 | 53 | 61 | 689 | 793 | 3,233 | 3,643 | 42,029 | 47,359 | 193,079 | 222,223 | 2,510,027 | 2,888,899 | 11,777,819 | 153,111,647 |
| -1 | -13 | -53 | -61 | -689 | -793 | -3,233 | -3,643 | -42,029 | -47,359 | -193,079 | -222,223 | -2,510,027 | -2,888,899 | -11,777,819 | -153,111,647 |
Here are some more numbers to try:
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