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