Sort each number as Prime or Composite.
Exercise and reference answers
- Left
- Prime
- Items
- Item
- 2
- Answer
- Prime
- Item
- 7
- Answer
- Prime
- Item
- 13
- Answer
- Prime
- Item
- 4
- Answer
- Composite
- Item
- 9
- Answer
- Composite
- Item
- 15
- Answer
- Composite
- Right
- Composite
- Instructions
- Prime = exactly 2 divisors. Composite = more than 2.
Explanation
_Source: syllabus Maths, Ch 1 'Real Numbers' §1.2_
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