use std::io::Read;

fn gcd(a: u64, b: u64) -> u64 {
    if b == 0 {
        a
    } else {
        gcd(b, a % b)
    }
}

fn run() {
    let mut s = String::new();
    std::io::stdin().read_to_string(&mut s).unwrap();
    let mut it = s.trim().split_whitespace();
    it.next();
    let mut ans = 0;
    let mut stack = vec![];
    for s in it {
        let a: u64 = s.parse().unwrap();
        stack.push((a, 1u64));
        for p in stack.iter_mut() {
            p.0 = gcd(p.0, a);
        }
        stack.dedup_by(|a, b| {
            let cond = a.0 == b.0;
            if cond {
                b.1 += a.1;
            }
            cond
        });
        if stack[0].0 == 1 {
            ans += stack[0].1;
        }
    }
    println!("{}", ans);
}

fn main() {
    run();
}