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