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