A:
Positive:
1 x 4000512255 x 800102457 x 5715017517 x 2353242525 x 1600204935 x 1143003585 x 4706485119 x 3361775175 x 2286007425 x 941297595 x 6723552975 x 134471
Negative:
-1 x -400051225-5 x -80010245-7 x -57150175-17 x -23532425-25 x -16002049-35 x -11430035-85 x -4706485-119 x -3361775-175 x -2286007-425 x -941297-595 x -672355-2975 x -134471
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 400,051,225, 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 | 400,051,225 | |
| -1 | -400,051,225 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 400,051,225.
Example:
1 x 400,051,225 = 400,051,225
and
-1 x -400,051,225 = 400,051,225
Notice both answers equal 400,051,225
With that explanation out of the way, let's continue. Next, we take the number 400,051,225 and divide it by 2:
400,051,225 ÷ 2 = 200,025,612.5
If the quotient is a whole number, then 2 and 200,025,612.5 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 | 400,051,225 | |
| -1 | -400,051,225 |
Now, we try dividing 400,051,225 by 3:
400,051,225 ÷ 3 = 133,350,408.3333
If the quotient is a whole number, then 3 and 133,350,408.3333 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 | 400,051,225 | |
| -1 | -400,051,225 |
Let's try dividing by 4:
400,051,225 ÷ 4 = 100,012,806.25
If the quotient is a whole number, then 4 and 100,012,806.25 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 | 400,051,225 | |
| -1 | 400,051,225 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 17 | 25 | 35 | 85 | 119 | 175 | 425 | 595 | 2,975 | 134,471 | 672,355 | 941,297 | 2,286,007 | 3,361,775 | 4,706,485 | 11,430,035 | 16,002,049 | 23,532,425 | 57,150,175 | 80,010,245 | 400,051,225 |
| -1 | -5 | -7 | -17 | -25 | -35 | -85 | -119 | -175 | -425 | -595 | -2,975 | -134,471 | -672,355 | -941,297 | -2,286,007 | -3,361,775 | -4,706,485 | -11,430,035 | -16,002,049 | -23,532,425 | -57,150,175 | -80,010,245 | -400,051,225 |
Here are some more numbers to try:
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