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