A:
Positive:
1 x 71816355 x 143632723 x 312245115 x 62449197 x 36455317 x 22655985 x 72911585 x 4531
Negative:
-1 x -7181635-5 x -1436327-23 x -312245-115 x -62449-197 x -36455-317 x -22655-985 x -7291-1585 x -4531
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 7,181,635, 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 | 7,181,635 | |
| -1 | -7,181,635 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 7,181,635.
Example:
1 x 7,181,635 = 7,181,635
and
-1 x -7,181,635 = 7,181,635
Notice both answers equal 7,181,635
With that explanation out of the way, let's continue. Next, we take the number 7,181,635 and divide it by 2:
7,181,635 ÷ 2 = 3,590,817.5
If the quotient is a whole number, then 2 and 3,590,817.5 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 | 7,181,635 | |
| -1 | -7,181,635 |
Now, we try dividing 7,181,635 by 3:
7,181,635 ÷ 3 = 2,393,878.3333
If the quotient is a whole number, then 3 and 2,393,878.3333 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 | 7,181,635 | |
| -1 | -7,181,635 |
Let's try dividing by 4:
7,181,635 ÷ 4 = 1,795,408.75
If the quotient is a whole number, then 4 and 1,795,408.75 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 | 7,181,635 | |
| -1 | 7,181,635 |
If you did it right, you will end up with this table:
| 1 | 5 | 23 | 115 | 197 | 317 | 985 | 1,585 | 4,531 | 7,291 | 22,655 | 36,455 | 62,449 | 312,245 | 1,436,327 | 7,181,635 |
| -1 | -5 | -23 | -115 | -197 | -317 | -985 | -1,585 | -4,531 | -7,291 | -22,655 | -36,455 | -62,449 | -312,245 | -1,436,327 | -7,181,635 |
Here are some more numbers to try:
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