def main():
gen = gmath.gen_sieve_of_eratosthenes()
p, primes = 1, []
while p < 10000:
p = gen.next()
p2 = p + 3330
p3 = p + 6660
if gmath.is_prime(p2) and gmath.is_prime(p3):
if gmath.is_permutation(p, p2) and gmath.is_permutation(p, p3):
primes.append([str(p), str(p2), str(p3)])
return int(''.join(primes[1]))
def main():
limit = 1000000
sums = get_sums(limit)
t = 1 # num of terms
result = 1 # max prime
for i in range(len(sums)):
for j in range(len(sums)):
n = sums[j] - sums[i] # sum
l = j-i # len
if gmath.is_prime(n) and l > t and n <= limit:
t = l
result = n
return result
def main():
sum = 2 # begin at 2, then iterate over only odd numbers
for i in range(3, 2000001, 2):
if gmath.is_prime(i):
sum += i
return sum
def main():
for n in range(7654321, 1, -2):
if gmath.is_pandigital(n) and gmath.is_prime(n):
return n
return None