P = [2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,97,101,103,107,109,113,127,131,137,139,149,151,157,163,167,173,179,181,191,193,197,199,211,223,227,229,233,239,241,251,257,263,269,271,277,281,283,293,307,311,313,317,331,337,347,349,353,359,367,373,379,383,389,397,401,409,419,421,431,433,439,443,449,457,461,463,467,479,487,491,499,503,509,521,523,541,547,557,563,569,571,577,587,593,599,601,607,613,617,619,631,641,643,647,653,659,661,673,677,683,691,701,709,719,727,733,739,743,751,757,761,769,773,787,797,809,811,821,823,827,829,839,853,857,859,863,877,881,883,887,907,911,919,929,937,941,947,953,967,971,977,983,991,997]
NP = len(P)
def part(q, ex):
i = 0
while(q > 1):
if q % P[i] == 0:
ex[i] += 1
q //= P[i]
else:
i += 1
def sip():
n, k = list(map(int, input().split()))
exp = NP*[0]
expk = NP*[0]
for i in range(2, n+1):
part(i, exp)
part(k, expk)
m = 1000000
for i in range(NP):
if expk[i] > exp[i]:
print(0)
return
elif expk[i] > 0:
m = min(m, exp[i]//expk[i])
print(m)
Z = int(input())
while(Z > 0):
sip()
Z -= 1