import sys import random from math import gcd MOD = 10**9 + 7 def is_prime(n): if n < 2: return False for p in [2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37]: if n % p == 0: return n == p d = n - 1 s = 0 while d % 2 == 0: d //= 2 s += 1 for a in [2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37]: if a >= n: continue x = pow(a, d, n) if x == 1 or x == n - 1: continue for _ in range(s - 1): x = pow(x, 2, n) if x == n - 1: break else: return False return True def pollards_rho(n): if n % 2 == 0: return 2 if n % 3 == 0: return 3 while True: c = random.randint(1, n - 1) f = lambda x: (pow(x, 2, n) + c) % n x, y, d = 2, 2, 1 while d == 1: x = f(x) y = f(f(y)) d = gcd(abs(x - y), n) if d != n: return d def factor(n): factors = {} def _factor(n): if n == 1: return if is_prime(n): factors[n] = factors.get(n, 0) + 1 return d = pollards_rho(n) _factor(d) _factor(n // d) _factor(n) return factors def generate_factors(factors): factors_list = [] def dfs(index, current): if index == len(factors): factors_list.append(current) return p, exp = factors[index] for e in range(0, exp + 1): dfs(index + 1, current * (p ** e)) dfs(0, 1) factors_list.sort() return factors_list def compute_pisano_period(p): if p == 5: return 20 mod5 = p % 5 if mod5 in [1, 4]: m = p - 1 else: m = 2 * (p + 1) if m == 0: return 1 factors = factor(m) factors_list = list(factors.items()) factors = generate_factors(factors_list) for d in factors: if d == 0: continue a, b = fib(d, p) if a == 0 and b == 1: return d return m def fib(n, mod): if n == 0: return (0, 1) a, b = fib(n >> 1, mod) c = (a * (2 * b - a)) % mod d = (a * a + b * b) % mod if n & 1: return (d, (c + d) % mod) else: return (c, d) def lcm(a, b): return a * b // gcd(a, b) def main(): input = sys.stdin.read().split() ptr = 0 n = int(input[ptr]) ptr += 1 primes = [] for _ in range(n): p = int(input[ptr]) k = int(input[ptr + 1]) ptr += 2 primes.append((p, k)) pisano_periods = [] for p, k in primes: if p == 5: period = 20 * (5 ** (k - 1)) else: period_p = compute_pisano_period(p) period = period_p * (p ** (k - 1)) pisano_periods.append(period) current_lcm = 1 for p in pisano_periods: current_lcm = lcm(current_lcm, p) print(current_lcm % MOD) if __name__ == "__main__": main()