What does second factor mean in Parallel Factor Analysis?

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Ephant
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There is a first factor and second factor in PARAFAC. What does second factor mean?

background:

Parallel Factor Analysis (PARAFAC; Hitchcock, 1927; Carrol and Chang, 1970; Harshman, 1970) is a method to decompose multi-dimensional arrays in order to focus on the features of interest, and provides a distinct illustration of the results.
 

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