A:
Positive:
1 x 560213717 x 800305331 x 180714153 x 1057007217 x 258163371 x 1510011643 x 340974871 x 11501
Negative:
-1 x -56021371-7 x -8003053-31 x -1807141-53 x -1057007-217 x -258163-371 x -151001-1643 x -34097-4871 x -11501
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 56,021,371, 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 | 56,021,371 | |
| -1 | -56,021,371 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 56,021,371.
Example:
1 x 56,021,371 = 56,021,371
and
-1 x -56,021,371 = 56,021,371
Notice both answers equal 56,021,371
With that explanation out of the way, let's continue. Next, we take the number 56,021,371 and divide it by 2:
56,021,371 ÷ 2 = 28,010,685.5
If the quotient is a whole number, then 2 and 28,010,685.5 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 | 56,021,371 | |
| -1 | -56,021,371 |
Now, we try dividing 56,021,371 by 3:
56,021,371 ÷ 3 = 18,673,790.3333
If the quotient is a whole number, then 3 and 18,673,790.3333 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 | 56,021,371 | |
| -1 | -56,021,371 |
Let's try dividing by 4:
56,021,371 ÷ 4 = 14,005,342.75
If the quotient is a whole number, then 4 and 14,005,342.75 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 | 56,021,371 | |
| -1 | 56,021,371 |
If you did it right, you will end up with this table:
| 1 | 7 | 31 | 53 | 217 | 371 | 1,643 | 4,871 | 11,501 | 34,097 | 151,001 | 258,163 | 1,057,007 | 1,807,141 | 8,003,053 | 56,021,371 |
| -1 | -7 | -31 | -53 | -217 | -371 | -1,643 | -4,871 | -11,501 | -34,097 | -151,001 | -258,163 | -1,057,007 | -1,807,141 | -8,003,053 | -56,021,371 |
Here are some more numbers to try:
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