BitWithBite
Mathematics Worksheet
🔷 Prime Numbers
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After this worksheet you can
Identify prime and composite numbers.Know that 2 is the only even prime.Test small numbers for primality.Understand that a prime has exactly two factors.📚 Quick Recap
A prime number can only be divided evenly by 1 and itself — these special numbers are the basic building blocks every other whole number is made from.
🧠 Section A · Concept Check ● BEGINNER 4 × 1 = 4
1Is 23 prime?
233 is:
3Is 2 prime?
451 is:
🧮 Section B · Problem Solving ● INTERMEDIATE 2 + 3×3 = 11
5A prime number has exactly factors.
6The only even prime number is .
7Is 23 prime?
8Is 33 prime or composite?
9Is 2 prime?
🚀 Section C · Challenge ● CHALLENGE 5
10Is 51 prime or composite?
💭 Reflection — the most useful thing I learned:
A ___/4 B ___/11 C ___/5 Total ___/20
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✂ answer key — fold or cut before handing out
1-A 2-B 3-A 4-B | 5 two 6 2 7 = Yes 8 = Composite (3 × 11) 9 = Yes | 10 = Composite (3 × 17)