Prime & Composite Worksheet
Recommended for 4th Grade — 6th Grade
Prime & Composite Worksheet
Name: ____________________Date: ____________
Instructions: Identifying prime and composite numbers and writing prime factorizations.
20 problems
- Prime numbers in {23, 3, 7, 9, 15, 12} → ______
- Prime numbers in {21, 11, 17, 7, 8, 9} → ______
- Prime numbers in {2, 7, 17, 27, 29, 3} → ______
- Prime numbers in {2, 3, 25, 21, 8, 11} → ______
- Prime numbers in {12, 23, 21, 19, 11, 9} → ______
- Prime numbers in {5, 23, 13, 7, 25, 3} → ______
- Prime numbers in {15, 2, 12, 23, 8, 17} → ______
- Prime numbers in {2, 17, 13, 7, 27, 23} → ______
- Prime numbers in {17, 27, 12, 11, 19, 23} → ______
- Prime numbers in {25, 8, 17, 19, 21, 3} → ______
- Prime numbers in {7, 23, 25, 13, 27, 17} → ______
- Prime numbers in {17, 13, 12, 23, 5, 15} → ______
- Prime numbers in {3, 15, 11, 8, 27, 29} → ______
- Prime numbers in {23, 21, 3, 25, 2, 27} → ______
- Prime numbers in {29, 11, 23, 2, 8, 5} → ______
- Prime numbers in {27, 3, 12, 17, 29, 9} → ______
- Prime numbers in {2, 3, 23, 19, 9, 27} → ______
- Prime numbers in {23, 12, 9, 15, 13, 7} → ______
- Prime numbers in {13, 27, 25, 29, 21, 5} → ______
- Prime numbers in {7, 9, 13, 8, 2, 21} → ______