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Here is a list of numbers - OCR - GCSE Maths - Question 3 - 2017 - Paper 1

Question 3

Here is a list of numbers. 11 27 81 21 41 42 23 39 45 From this list, write down a) the even number, b) the square number, c) all the prime numbers.

Worked Solution & Example Answer:Here is a list of numbers - OCR - GCSE Maths - Question 3 - 2017 - Paper 1

Step 1

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Answer

The even number in the list is 42.

Step 2

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Answer

The square number from the list is 81, as it equals $9^2$ .

Step 3

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Answer

The prime numbers in the list are 11, 23, and 41.

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