A:
Positive:
1 x 15122525323 x 657501137 x 408716983 x 1821991851 x 1777031909 x 792172141 x 706333071 x 49243
Negative:
-1 x -151225253-23 x -6575011-37 x -4087169-83 x -1821991-851 x -177703-1909 x -79217-2141 x -70633-3071 x -49243
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 151,225,253, 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 | 151,225,253 | |
| -1 | -151,225,253 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 151,225,253.
Example:
1 x 151,225,253 = 151,225,253
and
-1 x -151,225,253 = 151,225,253
Notice both answers equal 151,225,253
With that explanation out of the way, let's continue. Next, we take the number 151,225,253 and divide it by 2:
151,225,253 ÷ 2 = 75,612,626.5
If the quotient is a whole number, then 2 and 75,612,626.5 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 | 151,225,253 | |
| -1 | -151,225,253 |
Now, we try dividing 151,225,253 by 3:
151,225,253 ÷ 3 = 50,408,417.6667
If the quotient is a whole number, then 3 and 50,408,417.6667 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 | 151,225,253 | |
| -1 | -151,225,253 |
Let's try dividing by 4:
151,225,253 ÷ 4 = 37,806,313.25
If the quotient is a whole number, then 4 and 37,806,313.25 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 | 151,225,253 | |
| -1 | 151,225,253 |
If you did it right, you will end up with this table:
| 1 | 23 | 37 | 83 | 851 | 1,909 | 2,141 | 3,071 | 49,243 | 70,633 | 79,217 | 177,703 | 1,821,991 | 4,087,169 | 6,575,011 | 151,225,253 |
| -1 | -23 | -37 | -83 | -851 | -1,909 | -2,141 | -3,071 | -49,243 | -70,633 | -79,217 | -177,703 | -1,821,991 | -4,087,169 | -6,575,011 | -151,225,253 |
Here are some more numbers to try:
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