A:
Positive:
1 x 221535237 x 316478953 x 417991211 x 104993283 x 78281371 x 597131477 x 149991981 x 11183
Negative:
-1 x -22153523-7 x -3164789-53 x -417991-211 x -104993-283 x -78281-371 x -59713-1477 x -14999-1981 x -11183
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 22,153,523, 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 | 22,153,523 | |
| -1 | -22,153,523 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 22,153,523.
Example:
1 x 22,153,523 = 22,153,523
and
-1 x -22,153,523 = 22,153,523
Notice both answers equal 22,153,523
With that explanation out of the way, let's continue. Next, we take the number 22,153,523 and divide it by 2:
22,153,523 ÷ 2 = 11,076,761.5
If the quotient is a whole number, then 2 and 11,076,761.5 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 | 22,153,523 | |
| -1 | -22,153,523 |
Now, we try dividing 22,153,523 by 3:
22,153,523 ÷ 3 = 7,384,507.6667
If the quotient is a whole number, then 3 and 7,384,507.6667 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 | 22,153,523 | |
| -1 | -22,153,523 |
Let's try dividing by 4:
22,153,523 ÷ 4 = 5,538,380.75
If the quotient is a whole number, then 4 and 5,538,380.75 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 | 22,153,523 | |
| -1 | 22,153,523 |
If you did it right, you will end up with this table:
| 1 | 7 | 53 | 211 | 283 | 371 | 1,477 | 1,981 | 11,183 | 14,999 | 59,713 | 78,281 | 104,993 | 417,991 | 3,164,789 | 22,153,523 |
| -1 | -7 | -53 | -211 | -283 | -371 | -1,477 | -1,981 | -11,183 | -14,999 | -59,713 | -78,281 | -104,993 | -417,991 | -3,164,789 | -22,153,523 |
Here are some more numbers to try:
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