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