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Calculate the prime factorization of 540 and then click next.

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The prime factorization of 540 is 2 2×3 3×5 1.

How many positive integer factors (includes composite and prime) does 540 have?

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540 has 24 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 [2] => 4 )
Powers of 3: Array ( [0] => 1 [1] => 3 [2] => 9 [3] => 27 )
Powers of 5: Array ( [0] => 1 [1] => 5 )

The 24 composite factors of 540 are listed in the array below:
Array ( [0] => Array ( [0] => Array ( [0] => 1 [1] => 5 ) [1] => Array ( [0] => 3 [1] => 15 ) [2] => Array ( [0] => 9 [1] => 45 ) [3] => Array ( [0] => 27 [1] => 135 ) ) [1] => Array ( [0] => Array ( [0] => 2 [1] => 10 ) [1] => Array ( [0] => 6 [1] => 30 ) [2] => Array ( [0] => 18 [1] => 90 ) [3] => Array ( [0] => 54 [1] => 270 ) ) [2] => Array ( [0] => Array ( [0] => 4 [1] => 20 ) [1] => Array ( [0] => 12 [1] => 60 ) [2] => Array ( [0] => 36 [1] => 180 ) [3] => Array ( [0] => 108 [1] => 540 ) ) )

The composite factors listed in the array above are:
1     5     3     15     9     45     27     135     2     10     6     30     18     90     54     270     4     20     12     60     36     180     108     540    

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