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