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