#include <bits/stdc++.h>

#define endl '\n'
#define i64 long long
#define lg(x) ((int)log10(x))
#define log(x) ((int)log2(x))
#define PII std::pair<int, int>
#define init_0(x) memset(x, 0, sizeof(x))
#define init_inf(x) memset(x, 0x3f, sizeof(x))

inline i64 read() {
	bool sym = 0; i64 res = 0; char ch = getchar();
	while (!isdigit(ch)) sym |= (ch == '-'), ch = getchar();
	while (isdigit(ch)) res = (res << 3) + (res << 1) + (ch ^ 48), ch = getchar();
	return sym ? -res : res;
}

const int N = 2e5, mod = 998244353, inf = 0x3f3f3f3f;

void solve() {
	int n = read();
	std::vector<int> a(n + 1);
	for (int i = 1; i <= n; i++) a[i] = read();
	int ans = 0;
	for (int i = 1; i <= n; i++) {
		int x = i;
		while (x < n && log(a[x + 1]) == log(a[i])) x++;
		ans = std::max(ans, x - i + 1);
		i = x;
	}
	printf("%d\n", ans);
}

int main() {
	int T = read();
	while (T--) solve();
	return 0;
}