The Sieve of Eratosthenes

Content Name

The Sieve of Eratosthenes

Content Type

Partner Content

Description

Eratosthenes was a Greek mathematician who lived from approximately 200 BC. Amongst many amazing achievements, (including being able to work out the circumference of the earth) was his method for finding prime numbers using his ‘Sieve of Eratosthenes’ from 2 to any given number.

Curriculum

• Country

  England

  Key Stage:

  Key Stage 2

  Years:

  Year 5, Year 6

  Subjects:

  • Mathematics

  Topics:

  • Number - multiplication and division
  • Number - addition, subtraction, multiplication and division

  Programmes of Study:

  • identify multiples and factors, including finding all factor pairs of a number, and common factors of 2 numbers
  • establish whether a number up to 100 is prime and recall prime numbers up to 19
  • identify common factors, common multiples and prime numbers
  • know and use the vocabulary of prime numbers, prime factors and composite (non-prime) numbers

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