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