A:
Positive:
1 x 21988755 x 4397757 x 31412525 x 8795535 x 6282549 x 44875125 x 17591175 x 12565245 x 8975359 x 6125875 x 25131225 x 1795
Negative:
-1 x -2198875-5 x -439775-7 x -314125-25 x -87955-35 x -62825-49 x -44875-125 x -17591-175 x -12565-245 x -8975-359 x -6125-875 x -2513-1225 x -1795
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 2,198,875, 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 | 2,198,875 | |
| -1 | -2,198,875 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 2,198,875.
Example:
1 x 2,198,875 = 2,198,875
and
-1 x -2,198,875 = 2,198,875
Notice both answers equal 2,198,875
With that explanation out of the way, let's continue. Next, we take the number 2,198,875 and divide it by 2:
2,198,875 ÷ 2 = 1,099,437.5
If the quotient is a whole number, then 2 and 1,099,437.5 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 | 2,198,875 | |
| -1 | -2,198,875 |
Now, we try dividing 2,198,875 by 3:
2,198,875 ÷ 3 = 732,958.3333
If the quotient is a whole number, then 3 and 732,958.3333 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 | 2,198,875 | |
| -1 | -2,198,875 |
Let's try dividing by 4:
2,198,875 ÷ 4 = 549,718.75
If the quotient is a whole number, then 4 and 549,718.75 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 | 2,198,875 | |
| -1 | 2,198,875 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 25 | 35 | 49 | 125 | 175 | 245 | 359 | 875 | 1,225 | 1,795 | 2,513 | 6,125 | 8,975 | 12,565 | 17,591 | 44,875 | 62,825 | 87,955 | 314,125 | 439,775 | 2,198,875 |
| -1 | -5 | -7 | -25 | -35 | -49 | -125 | -175 | -245 | -359 | -875 | -1,225 | -1,795 | -2,513 | -6,125 | -8,975 | -12,565 | -17,591 | -44,875 | -62,825 | -87,955 | -314,125 | -439,775 | -2,198,875 |
Here are some more numbers to try:
Try the factor calculator