A:
Positive:
1 x 765722517 x 1093889349 x 156269979 x 969269131 x 584521151 x 507101553 x 138467917 x 835031057 x 724433871 x 197816419 x 119297399 x 10349
Negative:
-1 x -76572251-7 x -10938893-49 x -1562699-79 x -969269-131 x -584521-151 x -507101-553 x -138467-917 x -83503-1057 x -72443-3871 x -19781-6419 x -11929-7399 x -10349
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 76,572,251, 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 | 76,572,251 | |
| -1 | -76,572,251 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 76,572,251.
Example:
1 x 76,572,251 = 76,572,251
and
-1 x -76,572,251 = 76,572,251
Notice both answers equal 76,572,251
With that explanation out of the way, let's continue. Next, we take the number 76,572,251 and divide it by 2:
76,572,251 ÷ 2 = 38,286,125.5
If the quotient is a whole number, then 2 and 38,286,125.5 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 | 76,572,251 | |
| -1 | -76,572,251 |
Now, we try dividing 76,572,251 by 3:
76,572,251 ÷ 3 = 25,524,083.6667
If the quotient is a whole number, then 3 and 25,524,083.6667 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 | 76,572,251 | |
| -1 | -76,572,251 |
Let's try dividing by 4:
76,572,251 ÷ 4 = 19,143,062.75
If the quotient is a whole number, then 4 and 19,143,062.75 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 | 76,572,251 | |
| -1 | 76,572,251 |
If you did it right, you will end up with this table:
| 1 | 7 | 49 | 79 | 131 | 151 | 553 | 917 | 1,057 | 3,871 | 6,419 | 7,399 | 10,349 | 11,929 | 19,781 | 72,443 | 83,503 | 138,467 | 507,101 | 584,521 | 969,269 | 1,562,699 | 10,938,893 | 76,572,251 |
| -1 | -7 | -49 | -79 | -131 | -151 | -553 | -917 | -1,057 | -3,871 | -6,419 | -7,399 | -10,349 | -11,929 | -19,781 | -72,443 | -83,503 | -138,467 | -507,101 | -584,521 | -969,269 | -1,562,699 | -10,938,893 | -76,572,251 |
Here are some more numbers to try:
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