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