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