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