A:
Positive:
1 x 651624617 x 930892313 x 501249791 x 716071419 x 1555191709 x 381292933 x 222175447 x 11963
Negative:
-1 x -65162461-7 x -9308923-13 x -5012497-91 x -716071-419 x -155519-1709 x -38129-2933 x -22217-5447 x -11963
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 65,162,461, 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 | 65,162,461 | |
| -1 | -65,162,461 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 65,162,461.
Example:
1 x 65,162,461 = 65,162,461
and
-1 x -65,162,461 = 65,162,461
Notice both answers equal 65,162,461
With that explanation out of the way, let's continue. Next, we take the number 65,162,461 and divide it by 2:
65,162,461 ÷ 2 = 32,581,230.5
If the quotient is a whole number, then 2 and 32,581,230.5 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 | 65,162,461 | |
| -1 | -65,162,461 |
Now, we try dividing 65,162,461 by 3:
65,162,461 ÷ 3 = 21,720,820.3333
If the quotient is a whole number, then 3 and 21,720,820.3333 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 | 65,162,461 | |
| -1 | -65,162,461 |
Let's try dividing by 4:
65,162,461 ÷ 4 = 16,290,615.25
If the quotient is a whole number, then 4 and 16,290,615.25 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 | 65,162,461 | |
| -1 | 65,162,461 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 91 | 419 | 1,709 | 2,933 | 5,447 | 11,963 | 22,217 | 38,129 | 155,519 | 716,071 | 5,012,497 | 9,308,923 | 65,162,461 |
| -1 | -7 | -13 | -91 | -419 | -1,709 | -2,933 | -5,447 | -11,963 | -22,217 | -38,129 | -155,519 | -716,071 | -5,012,497 | -9,308,923 | -65,162,461 |
Here are some more numbers to try:
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