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