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