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