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