Criteria Numbers (40-50)

Can you pick the numbers which fit all given criteria?

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  • Only positive factors should be considered.
  • Two numbers are "coprime" with each other if their only shared factor is 1.
  • A number is "prime" if it has exactly two factors: 1 and itself.
  • Use the modern Roman numeral system with subtraction to avoid quadruple symbol repetition.
  • The nth "triangular" number is 1+2+3+...+n.
  • If a=b*c, then b and c are "factors" of a.
  • A "square" number is the product of an integer with itself.
Clickable: Select answers by clicking on text or image buttons
Forced Order: Answers have to be entered in order
Minefield: Wrong answers will end the quiz
Last Updated: Sep 20, 2018
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