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