This math topic focuses on identifying prime numbers from a pair of numbers. It involves comparing two numbers and determining which one is a prime number. The problems progress from easier pairings to more challenging ones, enhancing the learner's ability to recognize prime numbers in various contexts. This is part of a broader unit that introduces factoring and prime numbers.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

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Which Number of a Pair is Prime Worksheet

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Math worksheet on 'Which Number of a Pair is Prime (Level 1)'. Part of a broader unit on 'Factoring and Greatest Common Factor - Intro' Learn online: app.mobius.academy/math/units/factoring_and_greatest_common_factor_intro/
1
Which of these two numbers is a prime number?
7,9
a
7
b
9
2
Which of these two numbers is a prime number?
27,31
a
27
b
31
3
Which of these two numbers is a prime number?
7,20
a
7
b
20
4
Which of these two numbers is a prime number?
31,33
a
31
b
33
5
Which of these two numbers is a prime number?
37,54
a
37
b
54
6
Which of these two numbers is a prime number?
7,16
a
7
b
16
7
Which of these two numbers is a prime number?
27,29
a
27
b
29