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