A:
Positive:
1 x 1534504517 x 2192149311 x 1395004177 x 1992863613 x 2503273251 x 472014291 x 357616743 x 22757
Negative:
-1 x -153450451-7 x -21921493-11 x -13950041-77 x -1992863-613 x -250327-3251 x -47201-4291 x -35761-6743 x -22757
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 153,450,451, 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 | 153,450,451 | |
| -1 | -153,450,451 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 153,450,451.
Example:
1 x 153,450,451 = 153,450,451
and
-1 x -153,450,451 = 153,450,451
Notice both answers equal 153,450,451
With that explanation out of the way, let's continue. Next, we take the number 153,450,451 and divide it by 2:
153,450,451 ÷ 2 = 76,725,225.5
If the quotient is a whole number, then 2 and 76,725,225.5 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 | 153,450,451 | |
| -1 | -153,450,451 |
Now, we try dividing 153,450,451 by 3:
153,450,451 ÷ 3 = 51,150,150.3333
If the quotient is a whole number, then 3 and 51,150,150.3333 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 | 153,450,451 | |
| -1 | -153,450,451 |
Let's try dividing by 4:
153,450,451 ÷ 4 = 38,362,612.75
If the quotient is a whole number, then 4 and 38,362,612.75 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 | 153,450,451 | |
| -1 | 153,450,451 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 77 | 613 | 3,251 | 4,291 | 6,743 | 22,757 | 35,761 | 47,201 | 250,327 | 1,992,863 | 13,950,041 | 21,921,493 | 153,450,451 |
| -1 | -7 | -11 | -77 | -613 | -3,251 | -4,291 | -6,743 | -22,757 | -35,761 | -47,201 | -250,327 | -1,992,863 | -13,950,041 | -21,921,493 | -153,450,451 |
Here are some more numbers to try:
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