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