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