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
Complete these online problems with 80% or 4 correct answers in a row. Results are immediate.
Which of these two numbers is a prime number?
17,21
Earned ?
Which Number of a Pair is Prime Worksheet
| Math worksheet on 'Which Number of a Pair is Prime (Level 1)'. Part of a broader unit on 'Factoring and Venn Factor Diagrams - Practice' Learn online: app.mobius.academy/math/units/factoring_and_venn_diagrams_practice/ |
1
| Which of these two numbers is a prime number? |
| 35,41 |
a
| 35 |
b
| 41 |
2
| Which of these two numbers is a prime number? |
| 47,51 |
a
| 47 |
b
| 51 |
3
| Which of these two numbers is a prime number? |
| 2,8 |
a
| 2 |
b
| 8 |
4
| Which of these two numbers is a prime number? |
| 37,54 |
a
| 37 |
b
| 54 |
5
| Which of these two numbers is a prime number? |
| 27,31 |
a
| 27 |
b
| 31 |
6
| Which of these two numbers is a prime number? |
| 27,29 |
a
| 27 |
b
| 29 |
7
| Which of these two numbers is a prime number? |
| 11,15 |
a
| 11 |
b
| 15 |