from collections import defaultdict

def divisors(X):
   assert X >= 1
   from math import isqrt
   head = [d for d in range(1, isqrt(X) + 1) if X%d == 0]
   tail = [X//d for d in reversed(head)]
   if isqrt(X)**2 == X:
      head.pop()
   return head + tail

INF = 10**18
N = int(input())
AB = [tuple(map(int, input().split())) for _ in range(N)]

AB.sort(key=lambda ab: ab[0] * ab[1], reverse=True)
d = defaultdict(lambda: INF)

ans = 0
for a, b in AB:
   for g in divisors(a):
      na = d[g]
      score = b*g//na
      if ans < score:
         ans = score
      d[g] = min(d[g], a)

print(ans)