A:
Positive:
1 x 22342003119 x 1175894929 x 770413971 x 3146761551 x 4054811349 x 1656192059 x 1085095711 x 39121
Negative:
-1 x -223420031-19 x -11758949-29 x -7704139-71 x -3146761-551 x -405481-1349 x -165619-2059 x -108509-5711 x -39121
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 223,420,031, 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 | 223,420,031 | |
| -1 | -223,420,031 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 223,420,031.
Example:
1 x 223,420,031 = 223,420,031
and
-1 x -223,420,031 = 223,420,031
Notice both answers equal 223,420,031
With that explanation out of the way, let's continue. Next, we take the number 223,420,031 and divide it by 2:
223,420,031 ÷ 2 = 111,710,015.5
If the quotient is a whole number, then 2 and 111,710,015.5 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 | 223,420,031 | |
| -1 | -223,420,031 |
Now, we try dividing 223,420,031 by 3:
223,420,031 ÷ 3 = 74,473,343.6667
If the quotient is a whole number, then 3 and 74,473,343.6667 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 | 223,420,031 | |
| -1 | -223,420,031 |
Let's try dividing by 4:
223,420,031 ÷ 4 = 55,855,007.75
If the quotient is a whole number, then 4 and 55,855,007.75 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 | 223,420,031 | |
| -1 | 223,420,031 |
If you did it right, you will end up with this table:
| 1 | 19 | 29 | 71 | 551 | 1,349 | 2,059 | 5,711 | 39,121 | 108,509 | 165,619 | 405,481 | 3,146,761 | 7,704,139 | 11,758,949 | 223,420,031 |
| -1 | -19 | -29 | -71 | -551 | -1,349 | -2,059 | -5,711 | -39,121 | -108,509 | -165,619 | -405,481 | -3,146,761 | -7,704,139 | -11,758,949 | -223,420,031 |
Here are some more numbers to try:
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