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