A:
Positive:
1 x 1257070111 x 114279113 x 96697717 x 739453143 x 87907187 x 67223221 x 568812431 x 5171
Negative:
-1 x -12570701-11 x -1142791-13 x -966977-17 x -739453-143 x -87907-187 x -67223-221 x -56881-2431 x -5171
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 12,570,701, 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 | 12,570,701 | |
| -1 | -12,570,701 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,570,701.
Example:
1 x 12,570,701 = 12,570,701
and
-1 x -12,570,701 = 12,570,701
Notice both answers equal 12,570,701
With that explanation out of the way, let's continue. Next, we take the number 12,570,701 and divide it by 2:
12,570,701 ÷ 2 = 6,285,350.5
If the quotient is a whole number, then 2 and 6,285,350.5 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 | 12,570,701 | |
| -1 | -12,570,701 |
Now, we try dividing 12,570,701 by 3:
12,570,701 ÷ 3 = 4,190,233.6667
If the quotient is a whole number, then 3 and 4,190,233.6667 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 | 12,570,701 | |
| -1 | -12,570,701 |
Let's try dividing by 4:
12,570,701 ÷ 4 = 3,142,675.25
If the quotient is a whole number, then 4 and 3,142,675.25 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 | 12,570,701 | |
| -1 | 12,570,701 |
If you did it right, you will end up with this table:
| 1 | 11 | 13 | 17 | 143 | 187 | 221 | 2,431 | 5,171 | 56,881 | 67,223 | 87,907 | 739,453 | 966,977 | 1,142,791 | 12,570,701 |
| -1 | -11 | -13 | -17 | -143 | -187 | -221 | -2,431 | -5,171 | -56,881 | -67,223 | -87,907 | -739,453 | -966,977 | -1,142,791 | -12,570,701 |
Here are some more numbers to try:
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