A:
Positive:
1 x 251462755 x 50292557 x 359232511 x 228602525 x 100585135 x 71846555 x 45720577 x 326575175 x 143693275 x 91441385 x 653151925 x 13063
Negative:
-1 x -25146275-5 x -5029255-7 x -3592325-11 x -2286025-25 x -1005851-35 x -718465-55 x -457205-77 x -326575-175 x -143693-275 x -91441-385 x -65315-1925 x -13063
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 25,146,275, 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 | 25,146,275 | |
| -1 | -25,146,275 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 25,146,275.
Example:
1 x 25,146,275 = 25,146,275
and
-1 x -25,146,275 = 25,146,275
Notice both answers equal 25,146,275
With that explanation out of the way, let's continue. Next, we take the number 25,146,275 and divide it by 2:
25,146,275 ÷ 2 = 12,573,137.5
If the quotient is a whole number, then 2 and 12,573,137.5 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 | 25,146,275 | |
| -1 | -25,146,275 |
Now, we try dividing 25,146,275 by 3:
25,146,275 ÷ 3 = 8,382,091.6667
If the quotient is a whole number, then 3 and 8,382,091.6667 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 | 25,146,275 | |
| -1 | -25,146,275 |
Let's try dividing by 4:
25,146,275 ÷ 4 = 6,286,568.75
If the quotient is a whole number, then 4 and 6,286,568.75 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 | 25,146,275 | |
| -1 | 25,146,275 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 11 | 25 | 35 | 55 | 77 | 175 | 275 | 385 | 1,925 | 13,063 | 65,315 | 91,441 | 143,693 | 326,575 | 457,205 | 718,465 | 1,005,851 | 2,286,025 | 3,592,325 | 5,029,255 | 25,146,275 |
| -1 | -5 | -7 | -11 | -25 | -35 | -55 | -77 | -175 | -275 | -385 | -1,925 | -13,063 | -65,315 | -91,441 | -143,693 | -326,575 | -457,205 | -718,465 | -1,005,851 | -2,286,025 | -3,592,325 | -5,029,255 | -25,146,275 |
Here are some more numbers to try:
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