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