A:
Positive:
1 x 73792817 x 105418313 x 56763783 x 8890791 x 81091581 x 12701977 x 75531079 x 6839
Negative:
-1 x -7379281-7 x -1054183-13 x -567637-83 x -88907-91 x -81091-581 x -12701-977 x -7553-1079 x -6839
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 7,379,281, 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 | 7,379,281 | |
| -1 | -7,379,281 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 7,379,281.
Example:
1 x 7,379,281 = 7,379,281
and
-1 x -7,379,281 = 7,379,281
Notice both answers equal 7,379,281
With that explanation out of the way, let's continue. Next, we take the number 7,379,281 and divide it by 2:
7,379,281 ÷ 2 = 3,689,640.5
If the quotient is a whole number, then 2 and 3,689,640.5 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 | 7,379,281 | |
| -1 | -7,379,281 |
Now, we try dividing 7,379,281 by 3:
7,379,281 ÷ 3 = 2,459,760.3333
If the quotient is a whole number, then 3 and 2,459,760.3333 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 | 7,379,281 | |
| -1 | -7,379,281 |
Let's try dividing by 4:
7,379,281 ÷ 4 = 1,844,820.25
If the quotient is a whole number, then 4 and 1,844,820.25 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 | 7,379,281 | |
| -1 | 7,379,281 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 83 | 91 | 581 | 977 | 1,079 | 6,839 | 7,553 | 12,701 | 81,091 | 88,907 | 567,637 | 1,054,183 | 7,379,281 |
| -1 | -7 | -13 | -83 | -91 | -581 | -977 | -1,079 | -6,839 | -7,553 | -12,701 | -81,091 | -88,907 | -567,637 | -1,054,183 | -7,379,281 |
Here are some more numbers to try:
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