A:
Positive:
1 x 400515017 x 572164337 x 108247359 x 678839259 x 154639413 x 969772183 x 183472621 x 15281
Negative:
-1 x -40051501-7 x -5721643-37 x -1082473-59 x -678839-259 x -154639-413 x -96977-2183 x -18347-2621 x -15281
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 40,051,501, 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 | 40,051,501 | |
| -1 | -40,051,501 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 40,051,501.
Example:
1 x 40,051,501 = 40,051,501
and
-1 x -40,051,501 = 40,051,501
Notice both answers equal 40,051,501
With that explanation out of the way, let's continue. Next, we take the number 40,051,501 and divide it by 2:
40,051,501 ÷ 2 = 20,025,750.5
If the quotient is a whole number, then 2 and 20,025,750.5 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 | 40,051,501 | |
| -1 | -40,051,501 |
Now, we try dividing 40,051,501 by 3:
40,051,501 ÷ 3 = 13,350,500.3333
If the quotient is a whole number, then 3 and 13,350,500.3333 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 | 40,051,501 | |
| -1 | -40,051,501 |
Let's try dividing by 4:
40,051,501 ÷ 4 = 10,012,875.25
If the quotient is a whole number, then 4 and 10,012,875.25 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 | 40,051,501 | |
| -1 | 40,051,501 |
If you did it right, you will end up with this table:
| 1 | 7 | 37 | 59 | 259 | 413 | 2,183 | 2,621 | 15,281 | 18,347 | 96,977 | 154,639 | 678,839 | 1,082,473 | 5,721,643 | 40,051,501 |
| -1 | -7 | -37 | -59 | -259 | -413 | -2,183 | -2,621 | -15,281 | -18,347 | -96,977 | -154,639 | -678,839 | -1,082,473 | -5,721,643 | -40,051,501 |
Here are some more numbers to try:
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