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