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 if n % 5 == 0: return 5 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.append(n) return d = pollards_rho(n) _factor(d) _factor(n // d) _factor(n) factors.sort() return factors def get_prime_factors(n): if n == 1: return [] factors = factor(n) result = [] prev = factors[0] count = 1 for p in factors[1:]: if p == prev: count +=1 else: result.append( (prev, count) ) prev = p count =1 result.append( (prev, count) ) return result def generate_divisors(factors): divisors = [1] for (p, exp) in factors: temp = [] for d in divisors: current = d for e in range(1, exp+1): current *= p temp.append(current) divisors += temp divisors = list(set(divisors)) divisors.sort() return divisors def legendre_symbol(a, p): ls = pow(a, (p-1)//2, p) if ls == p-1: return -1 return ls def fast_doubling(n, p): def fib_pair(n): if n == 0: return (0, 1) a, b = fib_pair(n >> 1) c = (a * (2 * b - a)) % p d = (a * a + b * b) % p if n & 1: return (d, (c + d) % p) else: return (c, d) return fib_pair(n) def compute_pisano_period(p): if p == 2: return 3 if p == 5: return 20 res = legendre_symbol(5, p) if res == 1: D = p - 1 else: D = 2 * (p + 1) if D == 0: return 1 factors = get_prime_factors(D) divisors = generate_divisors(factors) for n in divisors: a, b = fast_doubling(n, p) if a == 0 and b == 1: return n return D def compute_lcm(a, b): return a * b // gcd(a, b) def main(): input = sys.stdin.read().split() idx = 0 N = int(input[idx]) idx +=1 primes = [] for _ in range(N): p = int(input[idx]) k = int(input[idx+1]) idx +=2 primes.append( (p, k) ) pisano_periods = [] for p, k in primes: if p == 2: if k == 1: pi = 3 else: pi = 3 * (2 ** (k-1)) elif p == 5: if k == 1: pi = 20 else: pi = 20 * (5 ** (k-1)) else: pi_p = compute_pisano_period(p) pi = pi_p * (p ** (k-1)) pisano_periods.append(pi) current_lcm = 1 for pi in pisano_periods: current_lcm = compute_lcm(current_lcm, pi) current_lcm %= MOD print(current_lcm % MOD) if __name__ == "__main__": main()