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