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