Foundation June 2023 Paper 1 Q18
18 Two prime numbers are multiplied together.
The answer is an even number between 50 and 60
Complete the calculation. [3 marks]
\[\boxed{\phantom{00}} \times \boxed{\phantom{00}} = \boxed{\phantom{00}}\]| Answer | Mark | Comments |
|---|---|---|
| All conditions met: • first number is prime • second number is prime • correctly evaluated • even answer • answer in range | B3 | if their product is incorrectly evaluated or missing, then ‘even answer’ and ‘answer in range’ refer to the correct product for their multiplication B2 4 conditions met B1 3 conditions met |
Additional guidance
| \(2 \times 29 = 58\) (or \(29 \times 2 = 58\)) is the only fully correct solution | B3 |
| Allow 50 to 60 inclusive for ‘answer in range’ | |
| Award the best mark from boxes or in working for up to B2 | |
| The two prime numbers do not have to be different |