A:
Positive:
1 x 253441377 x 362059113 x 194954923 x 110191991 x 278507161 x 157417299 x 847632093 x 12109
Negative:
-1 x -25344137-7 x -3620591-13 x -1949549-23 x -1101919-91 x -278507-161 x -157417-299 x -84763-2093 x -12109
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 25,344,137, 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 | 25,344,137 | |
| -1 | -25,344,137 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 25,344,137.
Example:
1 x 25,344,137 = 25,344,137
and
-1 x -25,344,137 = 25,344,137
Notice both answers equal 25,344,137
With that explanation out of the way, let's continue. Next, we take the number 25,344,137 and divide it by 2:
25,344,137 ÷ 2 = 12,672,068.5
If the quotient is a whole number, then 2 and 12,672,068.5 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 | 25,344,137 | |
| -1 | -25,344,137 |
Now, we try dividing 25,344,137 by 3:
25,344,137 ÷ 3 = 8,448,045.6667
If the quotient is a whole number, then 3 and 8,448,045.6667 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 | 25,344,137 | |
| -1 | -25,344,137 |
Let's try dividing by 4:
25,344,137 ÷ 4 = 6,336,034.25
If the quotient is a whole number, then 4 and 6,336,034.25 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 | 25,344,137 | |
| -1 | 25,344,137 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 23 | 91 | 161 | 299 | 2,093 | 12,109 | 84,763 | 157,417 | 278,507 | 1,101,919 | 1,949,549 | 3,620,591 | 25,344,137 |
| -1 | -7 | -13 | -23 | -91 | -161 | -299 | -2,093 | -12,109 | -84,763 | -157,417 | -278,507 | -1,101,919 | -1,949,549 | -3,620,591 | -25,344,137 |
Here are some more numbers to try:
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