A:
Positive:
1 x 1315413719 x 69232323 x 57191931 x 424327437 x 30101589 x 22333713 x 18449971 x 13547
Negative:
-1 x -13154137-19 x -692323-23 x -571919-31 x -424327-437 x -30101-589 x -22333-713 x -18449-971 x -13547
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 13,154,137, 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 | 13,154,137 | |
| -1 | -13,154,137 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,154,137.
Example:
1 x 13,154,137 = 13,154,137
and
-1 x -13,154,137 = 13,154,137
Notice both answers equal 13,154,137
With that explanation out of the way, let's continue. Next, we take the number 13,154,137 and divide it by 2:
13,154,137 ÷ 2 = 6,577,068.5
If the quotient is a whole number, then 2 and 6,577,068.5 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 | 13,154,137 | |
| -1 | -13,154,137 |
Now, we try dividing 13,154,137 by 3:
13,154,137 ÷ 3 = 4,384,712.3333
If the quotient is a whole number, then 3 and 4,384,712.3333 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 | 13,154,137 | |
| -1 | -13,154,137 |
Let's try dividing by 4:
13,154,137 ÷ 4 = 3,288,534.25
If the quotient is a whole number, then 4 and 3,288,534.25 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 | 13,154,137 | |
| -1 | 13,154,137 |
If you did it right, you will end up with this table:
| 1 | 19 | 23 | 31 | 437 | 589 | 713 | 971 | 13,547 | 18,449 | 22,333 | 30,101 | 424,327 | 571,919 | 692,323 | 13,154,137 |
| -1 | -19 | -23 | -31 | -437 | -589 | -713 | -971 | -13,547 | -18,449 | -22,333 | -30,101 | -424,327 | -571,919 | -692,323 | -13,154,137 |
Here are some more numbers to try:
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