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