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