from math import lcm

N = int(input())
P, Q, R = map(int, input().split())
A, B, C = map(int, input().split())

g = lcm(P, Q, R)
lim = 10**6 + 9
for i in range(lim+1):
  if i%P==A and i%Q==B and i%R==C:
    break
else:
  print(0)
  exit()

ans = (N-i)//g + 1
print(ans)