A:
Positive:
1 x 552512155 x 1105024367 x 824645131 x 421765335 x 164929655 x 843531259 x 438856295 x 8777
Negative:
-1 x -55251215-5 x -11050243-67 x -824645-131 x -421765-335 x -164929-655 x -84353-1259 x -43885-6295 x -8777
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 55,251,215, 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 | 55,251,215 | |
| -1 | -55,251,215 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 55,251,215.
Example:
1 x 55,251,215 = 55,251,215
and
-1 x -55,251,215 = 55,251,215
Notice both answers equal 55,251,215
With that explanation out of the way, let's continue. Next, we take the number 55,251,215 and divide it by 2:
55,251,215 ÷ 2 = 27,625,607.5
If the quotient is a whole number, then 2 and 27,625,607.5 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 | 55,251,215 | |
| -1 | -55,251,215 |
Now, we try dividing 55,251,215 by 3:
55,251,215 ÷ 3 = 18,417,071.6667
If the quotient is a whole number, then 3 and 18,417,071.6667 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 | 55,251,215 | |
| -1 | -55,251,215 |
Let's try dividing by 4:
55,251,215 ÷ 4 = 13,812,803.75
If the quotient is a whole number, then 4 and 13,812,803.75 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 | 55,251,215 | |
| -1 | 55,251,215 |
If you did it right, you will end up with this table:
| 1 | 5 | 67 | 131 | 335 | 655 | 1,259 | 6,295 | 8,777 | 43,885 | 84,353 | 164,929 | 421,765 | 824,645 | 11,050,243 | 55,251,215 |
| -1 | -5 | -67 | -131 | -335 | -655 | -1,259 | -6,295 | -8,777 | -43,885 | -84,353 | -164,929 | -421,765 | -824,645 | -11,050,243 | -55,251,215 |
Here are some more numbers to try:
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