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Diffstat (limited to 'sumofprimes.py.orig')
| -rw-r--r-- | sumofprimes.py.orig | 44 |
1 files changed, 0 insertions, 44 deletions
diff --git a/sumofprimes.py.orig b/sumofprimes.py.orig deleted file mode 100644 index 3799e94..0000000 --- a/sumofprimes.py.orig +++ /dev/null @@ -1,44 +0,0 @@ -import PIL, math - -#Problem 10 sum of primes -###INEFFICIENT### -#def isPrime(number): -# if (number <=1): -# return False -# for i in range(2,number): -# if(number%i==0): -# return False -# return True - -#def prime_factors(number): - #primes = [] - #for i in range(number, 2, -1): - #if(number%i==0): - #if (isPrime(i)): - #return i - #return primes - - - -def prime_factors(number): - primes = [] - if (number <=1): - return [1] - a = [1] * number - a[0]=0 - a[1]=0#not prime - for i in range(2,int(math.ceil(math.sqrt(number)))): - if(a[i]==1): - j = i**2 #cross out all the multiples - while(j < number): - a[j] = False - j+=i - - for k in range(2, number): - #is prime - if(a[k]==1): - primes.append(k) - return primes - -out = prime_factors(2000000) -print(str(sum(out))) |