A:
Positive:
1 x 250411155 x 500822311 x 227646555 x 455293109 x 229735545 x 459471199 x 208854177 x 5995
Negative:
-1 x -25041115-5 x -5008223-11 x -2276465-55 x -455293-109 x -229735-545 x -45947-1199 x -20885-4177 x -5995
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 25,041,115, 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 | 25,041,115 | |
| -1 | -25,041,115 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 25,041,115.
Example:
1 x 25,041,115 = 25,041,115
and
-1 x -25,041,115 = 25,041,115
Notice both answers equal 25,041,115
With that explanation out of the way, let's continue. Next, we take the number 25,041,115 and divide it by 2:
25,041,115 ÷ 2 = 12,520,557.5
If the quotient is a whole number, then 2 and 12,520,557.5 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 | 25,041,115 | |
| -1 | -25,041,115 |
Now, we try dividing 25,041,115 by 3:
25,041,115 ÷ 3 = 8,347,038.3333
If the quotient is a whole number, then 3 and 8,347,038.3333 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 | 25,041,115 | |
| -1 | -25,041,115 |
Let's try dividing by 4:
25,041,115 ÷ 4 = 6,260,278.75
If the quotient is a whole number, then 4 and 6,260,278.75 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 | 25,041,115 | |
| -1 | 25,041,115 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 109 | 545 | 1,199 | 4,177 | 5,995 | 20,885 | 45,947 | 229,735 | 455,293 | 2,276,465 | 5,008,223 | 25,041,115 |
| -1 | -5 | -11 | -55 | -109 | -545 | -1,199 | -4,177 | -5,995 | -20,885 | -45,947 | -229,735 | -455,293 | -2,276,465 | -5,008,223 | -25,041,115 |
Here are some more numbers to try:
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