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