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