A:
Positive:
1 x 7124451113 x 548034741 x 1737671349 x 204139383 x 186017533 x 1336674537 x 157034979 x 14309
Negative:
-1 x -71244511-13 x -5480347-41 x -1737671-349 x -204139-383 x -186017-533 x -133667-4537 x -15703-4979 x -14309
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 71,244,511, 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 | 71,244,511 | |
| -1 | -71,244,511 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 71,244,511.
Example:
1 x 71,244,511 = 71,244,511
and
-1 x -71,244,511 = 71,244,511
Notice both answers equal 71,244,511
With that explanation out of the way, let's continue. Next, we take the number 71,244,511 and divide it by 2:
71,244,511 ÷ 2 = 35,622,255.5
If the quotient is a whole number, then 2 and 35,622,255.5 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 | 71,244,511 | |
| -1 | -71,244,511 |
Now, we try dividing 71,244,511 by 3:
71,244,511 ÷ 3 = 23,748,170.3333
If the quotient is a whole number, then 3 and 23,748,170.3333 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 | 71,244,511 | |
| -1 | -71,244,511 |
Let's try dividing by 4:
71,244,511 ÷ 4 = 17,811,127.75
If the quotient is a whole number, then 4 and 17,811,127.75 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 | 71,244,511 | |
| -1 | 71,244,511 |
If you did it right, you will end up with this table:
| 1 | 13 | 41 | 349 | 383 | 533 | 4,537 | 4,979 | 14,309 | 15,703 | 133,667 | 186,017 | 204,139 | 1,737,671 | 5,480,347 | 71,244,511 |
| -1 | -13 | -41 | -349 | -383 | -533 | -4,537 | -4,979 | -14,309 | -15,703 | -133,667 | -186,017 | -204,139 | -1,737,671 | -5,480,347 | -71,244,511 |
Here are some more numbers to try:
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