RosettaCodeData/Task/Parallel-calculations/Sidef/parallel-calculations.sidef

var nums = [1275792312878611, 12345678915808973,
            1578070919762253, 14700694496703910,];

var factors = nums.map {|n| prime_factors.ffork(n) }.map { .wait }
say ((nums ~Z factors)->max_by {|m| m[1][0] })