A:
Positive:
1 x 72718455 x 14543697 x 103883535 x 20776749 x 14840567 x 108535245 x 29681335 x 21707443 x 16415469 x 155052215 x 32832345 x 3101
Negative:
-1 x -7271845-5 x -1454369-7 x -1038835-35 x -207767-49 x -148405-67 x -108535-245 x -29681-335 x -21707-443 x -16415-469 x -15505-2215 x -3283-2345 x -3101
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 7,271,845, 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 | 7,271,845 | |
| -1 | -7,271,845 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 7,271,845.
Example:
1 x 7,271,845 = 7,271,845
and
-1 x -7,271,845 = 7,271,845
Notice both answers equal 7,271,845
With that explanation out of the way, let's continue. Next, we take the number 7,271,845 and divide it by 2:
7,271,845 ÷ 2 = 3,635,922.5
If the quotient is a whole number, then 2 and 3,635,922.5 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 | 7,271,845 | |
| -1 | -7,271,845 |
Now, we try dividing 7,271,845 by 3:
7,271,845 ÷ 3 = 2,423,948.3333
If the quotient is a whole number, then 3 and 2,423,948.3333 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 | 7,271,845 | |
| -1 | -7,271,845 |
Let's try dividing by 4:
7,271,845 ÷ 4 = 1,817,961.25
If the quotient is a whole number, then 4 and 1,817,961.25 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 | 7,271,845 | |
| -1 | 7,271,845 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 49 | 67 | 245 | 335 | 443 | 469 | 2,215 | 2,345 | 3,101 | 3,283 | 15,505 | 16,415 | 21,707 | 29,681 | 108,535 | 148,405 | 207,767 | 1,038,835 | 1,454,369 | 7,271,845 |
| -1 | -5 | -7 | -35 | -49 | -67 | -245 | -335 | -443 | -469 | -2,215 | -2,345 | -3,101 | -3,283 | -15,505 | -16,415 | -21,707 | -29,681 | -108,535 | -148,405 | -207,767 | -1,038,835 | -1,454,369 | -7,271,845 |
Here are some more numbers to try:
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