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