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