A:
Positive:
1 x 153026237 x 218608931 x 49363397 x 157759217 x 70519679 x 22537727 x 210493007 x 5089
Negative:
-1 x -15302623-7 x -2186089-31 x -493633-97 x -157759-217 x -70519-679 x -22537-727 x -21049-3007 x -5089
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 15,302,623, 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 | 15,302,623 | |
| -1 | -15,302,623 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,302,623.
Example:
1 x 15,302,623 = 15,302,623
and
-1 x -15,302,623 = 15,302,623
Notice both answers equal 15,302,623
With that explanation out of the way, let's continue. Next, we take the number 15,302,623 and divide it by 2:
15,302,623 ÷ 2 = 7,651,311.5
If the quotient is a whole number, then 2 and 7,651,311.5 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 | 15,302,623 | |
| -1 | -15,302,623 |
Now, we try dividing 15,302,623 by 3:
15,302,623 ÷ 3 = 5,100,874.3333
If the quotient is a whole number, then 3 and 5,100,874.3333 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 | 15,302,623 | |
| -1 | -15,302,623 |
Let's try dividing by 4:
15,302,623 ÷ 4 = 3,825,655.75
If the quotient is a whole number, then 4 and 3,825,655.75 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 | 15,302,623 | |
| -1 | 15,302,623 |
If you did it right, you will end up with this table:
| 1 | 7 | 31 | 97 | 217 | 679 | 727 | 3,007 | 5,089 | 21,049 | 22,537 | 70,519 | 157,759 | 493,633 | 2,186,089 | 15,302,623 |
| -1 | -7 | -31 | -97 | -217 | -679 | -727 | -3,007 | -5,089 | -21,049 | -22,537 | -70,519 | -157,759 | -493,633 | -2,186,089 | -15,302,623 |
Here are some more numbers to try:
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