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