A:
Positive:
1 x 1512565319 x 79608759 x 256367103 x 146851131 x 1154631121 x 134931957 x 77292489 x 6077
Negative:
-1 x -15125653-19 x -796087-59 x -256367-103 x -146851-131 x -115463-1121 x -13493-1957 x -7729-2489 x -6077
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 15,125,653, 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 | 15,125,653 | |
| -1 | -15,125,653 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,125,653.
Example:
1 x 15,125,653 = 15,125,653
and
-1 x -15,125,653 = 15,125,653
Notice both answers equal 15,125,653
With that explanation out of the way, let's continue. Next, we take the number 15,125,653 and divide it by 2:
15,125,653 ÷ 2 = 7,562,826.5
If the quotient is a whole number, then 2 and 7,562,826.5 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 | 15,125,653 | |
| -1 | -15,125,653 |
Now, we try dividing 15,125,653 by 3:
15,125,653 ÷ 3 = 5,041,884.3333
If the quotient is a whole number, then 3 and 5,041,884.3333 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 | 15,125,653 | |
| -1 | -15,125,653 |
Let's try dividing by 4:
15,125,653 ÷ 4 = 3,781,413.25
If the quotient is a whole number, then 4 and 3,781,413.25 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 | 15,125,653 | |
| -1 | 15,125,653 |
If you did it right, you will end up with this table:
| 1 | 19 | 59 | 103 | 131 | 1,121 | 1,957 | 2,489 | 6,077 | 7,729 | 13,493 | 115,463 | 146,851 | 256,367 | 796,087 | 15,125,653 |
| -1 | -19 | -59 | -103 | -131 | -1,121 | -1,957 | -2,489 | -6,077 | -7,729 | -13,493 | -115,463 | -146,851 | -256,367 | -796,087 | -15,125,653 |
Here are some more numbers to try:
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