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