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Calculate the prime factorization of 30 and then click next.

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The prime factorization of 30 is 2 1×3 1×5 1.

How many positive integer factors (includes composite and prime) does 30 have?

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30 has 8 factors.

Here is how the number of factors were calculated:

//In the future enter php code here to demonstrate how to find the number of factors.

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The power factor one-dimensional arrays are:
Powers of 2: Array ( [0] => 1 [1] => 2 )
Powers of 3: Array ( [0] => 1 [1] => 3 )
Powers of 5: Array ( [0] => 1 [1] => 5 )

The 8 composite factors of 30 are listed in the array below:
Array ( [0] => Array ( [0] => Array ( [0] => 1 [1] => 5 ) [1] => Array ( [0] => 3 [1] => 15 ) ) [1] => Array ( [0] => Array ( [0] => 2 [1] => 10 ) [1] => Array ( [0] => 6 [1] => 30 ) ) )

The composite factors listed in the array above are:
1     5     3     15     2     10     6     30    

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