def compute_wheel(limit):
primes = seive(limit)
circum = reduce(lambda x,y: x*y, primes, 1)
spokes = [i for i in range(1, circum) if gcd(i, circum) == 1]
diffs = [spokes[i+1] - s for i,s in enumerate(spokes[:-1])]
diffs.insert(0, circum - spokes[-1] + 1)
return primes, diffs
def treasure():
primes = praxis.seive(10**7)
sums541 = sums(primes, 541, primes[-1])
sums41 = sums(primes, 41, primes[-1])
sums17 = sums(primes, 17, primes[-1])
sums7 = sums(primes, 7, primes[-1])
psums541 = intersect(primes, sums541)
psums41 = intersect(psums541, sums41)
psums17 = intersect(psums41, sums17)
psums7 = intersect(psums17, sums7)
return psums7[0]
