# What was the purpose of the Eratosthenes sieve?

to check whether a given number is divisible by 7

to round numbers to 10 decimal places

for determining consecutive digits in the number π.

for finding all prime numbers up to any given limit

In mathematics, the sieve of Eratosthenes is a simple, ancient algorithm for finding all prime numbers up to any given limit. It does so by iteratively marking as composite (i.e., not prime) the multiples of each prime, starting with the first prime number, 2.

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### Answers by country

to check whether a given number is divisible by 7

to round numbers to 10 decimal places

for determining consecutive digits in the number π.

for finding all prime numbers up to any given limit

answers

Australia

11

Greece

10

Austria

14

Poland

929

the United Kingdom

15

India

13

Germany

45

the United States

10