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