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