A:
Positive:
1 x 72906355 x 145812711 x 66278555 x 13255771 x 102685355 x 20537781 x 93351867 x 3905
Negative:
-1 x -7290635-5 x -1458127-11 x -662785-55 x -132557-71 x -102685-355 x -20537-781 x -9335-1867 x -3905
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 7,290,635, 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 | 7,290,635 | |
| -1 | -7,290,635 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 7,290,635.
Example:
1 x 7,290,635 = 7,290,635
and
-1 x -7,290,635 = 7,290,635
Notice both answers equal 7,290,635
With that explanation out of the way, let's continue. Next, we take the number 7,290,635 and divide it by 2:
7,290,635 ÷ 2 = 3,645,317.5
If the quotient is a whole number, then 2 and 3,645,317.5 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 | 7,290,635 | |
| -1 | -7,290,635 |
Now, we try dividing 7,290,635 by 3:
7,290,635 ÷ 3 = 2,430,211.6667
If the quotient is a whole number, then 3 and 2,430,211.6667 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 | 7,290,635 | |
| -1 | -7,290,635 |
Let's try dividing by 4:
7,290,635 ÷ 4 = 1,822,658.75
If the quotient is a whole number, then 4 and 1,822,658.75 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 | 7,290,635 | |
| -1 | 7,290,635 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 71 | 355 | 781 | 1,867 | 3,905 | 9,335 | 20,537 | 102,685 | 132,557 | 662,785 | 1,458,127 | 7,290,635 |
| -1 | -5 | -11 | -55 | -71 | -355 | -781 | -1,867 | -3,905 | -9,335 | -20,537 | -102,685 | -132,557 | -662,785 | -1,458,127 | -7,290,635 |
Here are some more numbers to try:
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