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Coprime Numbers Quizzes, Questions & Answers

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Top Trending Coprime Numbers Quizzes

Identifying and Applying Coprime Numbers

Identifying And Applying Coprime Numbers

Did you know two numbers don’t have to be prime to be coprime? In this quiz, you’ll explore pairs of numbers that share no factors except 1, test real examples, and connect the idea of coprimes to GCD. Take this quiz...

Questions: 20 | Attempts: 14 | Last updated: Dec 9, 2025

Sample Question 1
Which of the following pairs is coprime?

(8, 12)

(15, 25)

(14, 28)

(14, 25)

Sample Question 2
Which pair is not coprime?

(13, 20)

(16, 24)

(9, 22)

(17, 30)

Sample Question 3
If GCD(21, x) = 1, which x value makes them coprime?

10

14

21

28

Recent Coprime Numbers Quizzes

Coprime Numbers in Algebraic Contexts

Once you know how to spot coprime numbers, it’s time to use them in equations. In this quiz, you’ll solve problems where GCD rules help determine possible values of variables, explore linear equations like ax + by =...

Questions: 20 | Attempts: 10 | Last updated: Dec 9, 2025

Sample Question
If GCD(12, x) = 1, which x values make (12, x) coprime?

6

9

11

18