A:
Positive:
1 x 2020123455 x 4040246947 x 4298135235 x 859627503 x 4016151709 x 1182052515 x 803238545 x 23641
Negative:
-1 x -202012345-5 x -40402469-47 x -4298135-235 x -859627-503 x -401615-1709 x -118205-2515 x -80323-8545 x -23641
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 202,012,345, 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 | 202,012,345 | |
| -1 | -202,012,345 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 202,012,345.
Example:
1 x 202,012,345 = 202,012,345
and
-1 x -202,012,345 = 202,012,345
Notice both answers equal 202,012,345
With that explanation out of the way, let's continue. Next, we take the number 202,012,345 and divide it by 2:
202,012,345 ÷ 2 = 101,006,172.5
If the quotient is a whole number, then 2 and 101,006,172.5 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 | 202,012,345 | |
| -1 | -202,012,345 |
Now, we try dividing 202,012,345 by 3:
202,012,345 ÷ 3 = 67,337,448.3333
If the quotient is a whole number, then 3 and 67,337,448.3333 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 | 202,012,345 | |
| -1 | -202,012,345 |
Let's try dividing by 4:
202,012,345 ÷ 4 = 50,503,086.25
If the quotient is a whole number, then 4 and 50,503,086.25 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 | 202,012,345 | |
| -1 | 202,012,345 |
If you did it right, you will end up with this table:
| 1 | 5 | 47 | 235 | 503 | 1,709 | 2,515 | 8,545 | 23,641 | 80,323 | 118,205 | 401,615 | 859,627 | 4,298,135 | 40,402,469 | 202,012,345 |
| -1 | -5 | -47 | -235 | -503 | -1,709 | -2,515 | -8,545 | -23,641 | -80,323 | -118,205 | -401,615 | -859,627 | -4,298,135 | -40,402,469 | -202,012,345 |
Here are some more numbers to try:
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