0580.C1.1.03 — Identify and use: prime numbers.: past paper questions

Real questions on 0580.c1.1.03 — identify and use: prime numbers.

The newest 18 of 18 written questions. Open one to see it on the real paper.

1. 0980/11 · October/November 2025 · Q17a[1]
   17 (a) Write down a prime number between 20 and 30.See it on the paper →
2. 0980/41 · October/November 2025 · Q22[3]
   Alex invests $200atarateof$r\%$ per year compound interest. At the end of 25 years the value of this investment is $301.10$. Find the value of $r$.See it on the paper →
3. 0980/41 · October/November 2025 · Q24d[3]
   Martha walks a distance of $10$ km at a speed of $x$ km/h. She then runs a distance of $5$ km at a speed of $(x+4)$ km/h. The total time taken for the whole journey is $3.5$ hours. (d) Calculate the difference between the time Martha is walking and the time she is running. Give your answer in hours and minutes correct...See it on the paper →
4. 0980/41 · October/November 2025 · Q25a[1]
   25 Kai sorts parcels into two types, light and heavy. | Type of parcel | Mass ($m$ kg) | | :--- | :--- | | Light | $0<m\le 2$ | | Heavy | $2<m\le 5$ | The histogram shows some information about the number of parcels Kai sorts in one day. [Diagram: A histogram with the x-axis labelled "Mass (kg)" and the y-axis...See it on the paper →
5. 0980/41 · October/November 2025 · Q26[4]
   26 Solve the simultaneous equations. You must show all your working. $y=2x^2-3x-7$ $y=2x-7$See it on the paper →
6. 0980/41 · October/November 2025 · Q27[4]
   [Diagram: A prism with vertices A, B, C, D, E, F, G, H. The base is ABFE. The cross-section is trapezium ABCD. $AB=10\text{ cm}$, $AD=5\text{ cm}$, $DC=7\text{ cm}$, $BF=15\text{ cm}$. Right angles are marked at $A$ and $D$. The text "NOT TO SCALE" is present.] The diagram shows a prism of length $15\text{ cm}$...See it on the paper →
7. 0980/41 · October/November 2025 · Q28a[1]

   1-mark question — its maths and diagrams are best seen on the paper.

   See it on the paper →
8. 0980/31 · October/November 2024 · Q1c(iv)[1]
   [Diagram: A box containing the numbers 8, 24, 25, 36, 39, 41, 48] From this list of numbers, write down (iv) a prime number.See it on the paper →
9. 0980/32 · May/June 2024 · Q1a(iii)[1]
   1 (a) 6 7 10 12 18 32 49 63 From this list of numbers, write down (iii) a prime number.See it on the paper →
10. 0980/31 · October/November 2023 · Q1c(iv)[1]

    1-mark question — its maths and diagrams are best seen on the paper.

    See it on the paper →
11. 0980/12 · May/June 2023 · Q7[2]
    7 There are two prime numbers in this list. 27 47 57 61 75 93 Work out the sum of these two prime numbers.See it on the paper →
12. 0980/22 · May/June 2023 · Q2[2]
    There are two prime numbers in this list. 27 47 57 61 75 93 Work out the sum of these two prime numbers.See it on the paper →
13. 0980/41 · October/November 2022 · Q2b[1]
    (b) Write down a prime number between 90 and 100.See it on the paper →
14. 0980/21 · October/November 2021 · Q1[2]
    1 $P$ is a prime number where $60<P<80$. $P$ is 2 less than a square number. Find the value of $P$.See it on the paper →
15. 0980/21 · October/November 2021 · Q6a[2]
    The scale drawing shows the positions of two towns, $P$ and $Q$. The scale is $1\text{ cm}$ represents $4\text{ km}$. [Diagram: A scale drawing showing two points, $P$ and $Q$. Each point has a vertical arrow pointing upwards labelled "North". The scale is given as "Scale: $1\text{ cm}$ to $4\text{ km}$".] (a) Fi...See it on the paper →
16. 0980/31 · October/November 2021 · Q1b[2]
    (b) A, B and C are three consecutive whole numbers. • A is a prime number. • B is a cube number. • C is a square number. • $A+B+C$ is less than 40. Find A, B and C.See it on the paper →
17. 0980/31 · October/November 2019 · Q4c[1]
    (c) Write down a prime number between 30 and 40.See it on the paper →
18. 0980/12 · May/June 2019 · Q17b[1]
    (b) Write down a prime number between 50 and 60.See it on the paper →

What examiners said

Most candidates answered this question correctly. Common errors included 49 and 63.

— Examiner report, May/June 2024, 0980/32 Q1(a)(iii) (Cambridge)

More candidates were able to identify the prime number in the list, 31, although common wrong answers were 9, 1000 or 28. Prime numbers not in the list were also common wrong answers.

— Examiner report, October/November 2023, 0980/31 Q1(c)(iv) (Cambridge)

Selection of prime numbers from a list and adding these was done successfully by most candidates. The best responses identified the two prime numbers and added these values. Many responses recognised the two primes but did not show the final step of summing these.

— Examiner report, May/June 2023, 0980/12 Q7 (Cambridge)