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2.6.8  Matrix of factors : maple_ifactors

maple_ifactors has an integer n (or a list of integers) as parameter.
maple_ifactors decomposes the integer (or the integers of the list) into prime factors, but the output follows the Maple syntax :
it is a list with +1 or -1 (for the sign) and a matrix with 2 columns and where the lines are the prime factors and their multiplicity (or a list of lists...).
Input :

maple_ifactors(90)

Output :

[1,[[2,1],[3,2],[5,1]]]

Input :

maple_ifactor([36,52])

Output :

[[1,[[2,2],[3,2]]],[1,[[2,2],[13,1]]]]

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