A:
Positive:
1 x 1533565155 x 3067130313 x 1179665565 x 235933197 x 1580995169 x 907435485 x 316199845 x 1814871261 x 1216151871 x 819656305 x 243239355 x 16393
Negative:
-1 x -153356515-5 x -30671303-13 x -11796655-65 x -2359331-97 x -1580995-169 x -907435-485 x -316199-845 x -181487-1261 x -121615-1871 x -81965-6305 x -24323-9355 x -16393
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 153,356,515, 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 | 153,356,515 | |
| -1 | -153,356,515 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 153,356,515.
Example:
1 x 153,356,515 = 153,356,515
and
-1 x -153,356,515 = 153,356,515
Notice both answers equal 153,356,515
With that explanation out of the way, let's continue. Next, we take the number 153,356,515 and divide it by 2:
153,356,515 ÷ 2 = 76,678,257.5
If the quotient is a whole number, then 2 and 76,678,257.5 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 | 153,356,515 | |
| -1 | -153,356,515 |
Now, we try dividing 153,356,515 by 3:
153,356,515 ÷ 3 = 51,118,838.3333
If the quotient is a whole number, then 3 and 51,118,838.3333 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 | 153,356,515 | |
| -1 | -153,356,515 |
Let's try dividing by 4:
153,356,515 ÷ 4 = 38,339,128.75
If the quotient is a whole number, then 4 and 38,339,128.75 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 | 153,356,515 | |
| -1 | 153,356,515 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 97 | 169 | 485 | 845 | 1,261 | 1,871 | 6,305 | 9,355 | 16,393 | 24,323 | 81,965 | 121,615 | 181,487 | 316,199 | 907,435 | 1,580,995 | 2,359,331 | 11,796,655 | 30,671,303 | 153,356,515 |
| -1 | -5 | -13 | -65 | -97 | -169 | -485 | -845 | -1,261 | -1,871 | -6,305 | -9,355 | -16,393 | -24,323 | -81,965 | -121,615 | -181,487 | -316,199 | -907,435 | -1,580,995 | -2,359,331 | -11,796,655 | -30,671,303 | -153,356,515 |
Here are some more numbers to try:
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