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