A:
Positive:
1 x 31466897 x 44952713 x 24205391 x 34579151 x 20839229 x 137411057 x 29771603 x 1963
Negative:
-1 x -3146689-7 x -449527-13 x -242053-91 x -34579-151 x -20839-229 x -13741-1057 x -2977-1603 x -1963
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 3,146,689, 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 | 3,146,689 | |
| -1 | -3,146,689 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,146,689.
Example:
1 x 3,146,689 = 3,146,689
and
-1 x -3,146,689 = 3,146,689
Notice both answers equal 3,146,689
With that explanation out of the way, let's continue. Next, we take the number 3,146,689 and divide it by 2:
3,146,689 ÷ 2 = 1,573,344.5
If the quotient is a whole number, then 2 and 1,573,344.5 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 | 3,146,689 | |
| -1 | -3,146,689 |
Now, we try dividing 3,146,689 by 3:
3,146,689 ÷ 3 = 1,048,896.3333
If the quotient is a whole number, then 3 and 1,048,896.3333 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 | 3,146,689 | |
| -1 | -3,146,689 |
Let's try dividing by 4:
3,146,689 ÷ 4 = 786,672.25
If the quotient is a whole number, then 4 and 786,672.25 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 | 3,146,689 | |
| -1 | 3,146,689 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 91 | 151 | 229 | 1,057 | 1,603 | 1,963 | 2,977 | 13,741 | 20,839 | 34,579 | 242,053 | 449,527 | 3,146,689 |
| -1 | -7 | -13 | -91 | -151 | -229 | -1,057 | -1,603 | -1,963 | -2,977 | -13,741 | -20,839 | -34,579 | -242,053 | -449,527 | -3,146,689 |
Here are some more numbers to try:
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