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i did copy and paste

Which of these groups am I? "All my numbers are perfect squares with 3 factors"

a.(121, 169, 49, 25) b.(144, 36, 49, 100)

c.(361, 25, 81, 196). d. (25, 100, 1225,36)

am so confused, is there a problem with the question, my colleagues all said the question is cleared enough.

my question "is this question ambiguous?"
DM329 The answer is A. factors of 121 (1,11,121), 169 (1,13,169), 49 (1,7.49) 25(1, 5, 25). its the only set where each perfect square has 3 factors. example 10's factors are (1,2,5,10) . hope that helps.
Feb 9, 2018


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