Challenge Level

Sue from CBEC Basingstoke sent the following explanation to the first question:

** X ** = 4876If you write 4876 as a product of prime factors you get 2 x 2 x 23 x 53

From this you need to find two, two digit numbers that use the digits 2, 3, 5 and 9

This has to be 2 x 2 x 23 = 92 and 53

We also received correct solutions from Jenny, Greenian, Rachael, Jacqui and Sam, from The Mount School, and Debbie from Forres Academy. Well done to you all.

53 x 92 = 4876

62 x 87 = 5394

24 x 57 = 1368

58 x 64 = 3712

52 x 34 = 1768

We'd like to hear from anyone who would like
to explain how they solved these problems.

We are always interested in the reasoning that has helped you reach
your solutions.