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 {25, 17, 23, 9, 3, 21} → ______
- Prime numbers in {13, 11, 15, 12, 2, 7} → ______
- Prime numbers in {13, 29, 11, 25, 12, 5} → ______
- Prime numbers in {11, 7, 25, 27, 19, 9} → ______
- Prime numbers in {21, 8, 11, 9, 3, 27} → ______
- Prime numbers in {17, 23, 21, 19, 27, 15} → ______
- Prime numbers in {5, 12, 27, 8, 13, 11} → ______
- Prime numbers in {21, 2, 17, 23, 5, 13} → ______
- Prime numbers in {11, 17, 15, 7, 19, 9} → ______
- Prime numbers in {27, 8, 19, 11, 15, 13} → ______
- Prime numbers in {23, 13, 5, 29, 17, 7} → ______
- Prime numbers in {5, 17, 7, 3, 8, 23} → ______
- Prime numbers in {29, 5, 23, 2, 7, 12} → ______
- Prime numbers in {7, 19, 9, 2, 25, 17} → ______
- Prime numbers in {13, 19, 23, 7, 17, 11} → ______
- Prime numbers in {3, 5, 12, 13, 19, 15} → ______
- Prime numbers in {12, 11, 23, 15, 21, 5} → ______
- Prime numbers in {9, 5, 15, 25, 29, 13} → ______
- Prime numbers in {23, 27, 17, 12, 9, 2} → ______
- Prime numbers in {25, 7, 27, 29, 13, 9} → ______