Q: What are the factor combinations of the number 3,577?

 A:
Positive:   1 x 35777 x 51149 x 73
Negative: -1 x -3577-7 x -511-49 x -73


How do I find the factor combinations of the number 3,577?

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 3,577, it is easier to work with a table - it's called factoring from the outside in.

Outside in Factoring

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 3,577
-1 -3,577

Why are the negative numbers included?

When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,577.

Example:
1 x 3,577 = 3,577
and
-1 x -3,577 = 3,577
Notice both answers equal 3,577

With that explanation out of the way, let's continue. Next, we take the number 3,577 and divide it by 2:

3,577 ÷ 2 = 1,788.5

If the quotient is a whole number, then 2 and 1,788.5 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 3,577
-1 -3,577

Now, we try dividing 3,577 by 3:

3,577 ÷ 3 = 1,192.3333

If the quotient is a whole number, then 3 and 1,192.3333 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 3,577
-1 -3,577

Let's try dividing by 4:

3,577 ÷ 4 = 894.25

If the quotient is a whole number, then 4 and 894.25 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 3,577
-1 3,577
Keep dividing by the next highest number until you cannot divide anymore.

If you did it right, you will end up with this table:

1749735113,577
-1-7-49-73-511-3,577

More Examples

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