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