A:
Positive:
1 x 224001477 x 320002111 x 203637777 x 290911421 x 53207691 x 324172947 x 76014631 x 4837
Negative:
-1 x -22400147-7 x -3200021-11 x -2036377-77 x -290911-421 x -53207-691 x -32417-2947 x -7601-4631 x -4837
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 22,400,147, 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 | 22,400,147 | |
| -1 | -22,400,147 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 22,400,147.
Example:
1 x 22,400,147 = 22,400,147
and
-1 x -22,400,147 = 22,400,147
Notice both answers equal 22,400,147
With that explanation out of the way, let's continue. Next, we take the number 22,400,147 and divide it by 2:
22,400,147 ÷ 2 = 11,200,073.5
If the quotient is a whole number, then 2 and 11,200,073.5 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 | 22,400,147 | |
| -1 | -22,400,147 |
Now, we try dividing 22,400,147 by 3:
22,400,147 ÷ 3 = 7,466,715.6667
If the quotient is a whole number, then 3 and 7,466,715.6667 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 | 22,400,147 | |
| -1 | -22,400,147 |
Let's try dividing by 4:
22,400,147 ÷ 4 = 5,600,036.75
If the quotient is a whole number, then 4 and 5,600,036.75 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 | 22,400,147 | |
| -1 | 22,400,147 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 77 | 421 | 691 | 2,947 | 4,631 | 4,837 | 7,601 | 32,417 | 53,207 | 290,911 | 2,036,377 | 3,200,021 | 22,400,147 |
| -1 | -7 | -11 | -77 | -421 | -691 | -2,947 | -4,631 | -4,837 | -7,601 | -32,417 | -53,207 | -290,911 | -2,036,377 | -3,200,021 | -22,400,147 |
Here are some more numbers to try:
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