A:
Positive:
1 x 7166061111 x 651460153 x 1352087101 x 709511583 x 1229171111 x 645011217 x 588835353 x 13387
Negative:
-1 x -71660611-11 x -6514601-53 x -1352087-101 x -709511-583 x -122917-1111 x -64501-1217 x -58883-5353 x -13387
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 71,660,611, 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 | 71,660,611 | |
| -1 | -71,660,611 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 71,660,611.
Example:
1 x 71,660,611 = 71,660,611
and
-1 x -71,660,611 = 71,660,611
Notice both answers equal 71,660,611
With that explanation out of the way, let's continue. Next, we take the number 71,660,611 and divide it by 2:
71,660,611 ÷ 2 = 35,830,305.5
If the quotient is a whole number, then 2 and 35,830,305.5 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 | 71,660,611 | |
| -1 | -71,660,611 |
Now, we try dividing 71,660,611 by 3:
71,660,611 ÷ 3 = 23,886,870.3333
If the quotient is a whole number, then 3 and 23,886,870.3333 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 | 71,660,611 | |
| -1 | -71,660,611 |
Let's try dividing by 4:
71,660,611 ÷ 4 = 17,915,152.75
If the quotient is a whole number, then 4 and 17,915,152.75 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 | 71,660,611 | |
| -1 | 71,660,611 |
If you did it right, you will end up with this table:
| 1 | 11 | 53 | 101 | 583 | 1,111 | 1,217 | 5,353 | 13,387 | 58,883 | 64,501 | 122,917 | 709,511 | 1,352,087 | 6,514,601 | 71,660,611 |
| -1 | -11 | -53 | -101 | -583 | -1,111 | -1,217 | -5,353 | -13,387 | -58,883 | -64,501 | -122,917 | -709,511 | -1,352,087 | -6,514,601 | -71,660,611 |
Here are some more numbers to try:
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