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