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OCR Foundation · Paper 2 · June 2025 · Q1 · non-calculator

Prime Numbers, Square Numbers & Difference

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From the paper · Q1 · 3 marks

Here is a list of numbers: 15 17 21 28 39 49. From this list, write down (a) the prime number, (b) the square number, (c) two numbers with a difference of 18.
OCR Foundation · Paper 2 · June 2025. Question © the exam board, shown for study.

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3 Your turn

From 14 19 25 27 33 45: the prime, the square, and two numbers that differ by 18.

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Prime: 19 Square: 25 Differ by 18: 27 and 45

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