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