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