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