#nullable enable

#region
var (_input, _iter) = (Array.Empty<string>(), 0);
T I<T>() where T : IParsable<T>
{
    while (_iter >= _input.Length) (_input, _iter) = (Console.ReadLine()!.Trim().Split(' '), 0);
    return T.Parse(_input[_iter++], null);
}
#endregion

const int Mod = 998244353;
var n = I<int>() + 1;
var az = Enumerable.Range(0, n).Select(_ => I<long>()).ToArray();
var uz = new long[n + 1];
var sz = new long[n + 1];
uz[0] = 1;
var data = new SegmentTree<long, Op>(az);
for (var i = 0; i < n; i++)
{
    var a = az[i];
    var u = uz[i];
    var s = sz[i];
    var pass = i + 1;
    var fail = n + 1;
    while (Math.Abs(pass - fail) >= 2)
    {
        var mid = (pass + fail) >> 1;
        var prod = data.Product(i + 1, mid);
        if (prod < Op.Max && a % prod == 0) pass = mid;
        else fail = mid;
    }
    sz[i + 1] = (sz[i + 1] + u + s) % Mod;
    sz[pass] = (sz[pass] + Mod - u) % Mod;
    uz[i + 1] = (u + s) % Mod;
}
var ans = uz[n - 1] + sz[n - 1];
Console.WriteLine(ans);

readonly struct Op : ISegmentTreeOperator<long>
{
    public const long Max = long.MaxValue;
    public long IdentityElement => 1;
    public long Operation(long x, long y)
    {
        if (y >= Max / x) return Max;
        return x * y;
    }
}
interface ISegmentTreeOperator<TMonoid>
{
    TMonoid IdentityElement { get; }
    TMonoid Operation(TMonoid x, TMonoid y);
}
class SegmentTree<TMonoid, TOperator> where TOperator : struct, ISegmentTreeOperator<TMonoid>
{
    public int BaseSize { get; init; }
    protected int Height { get; init; }
    protected TOperator Op { get; init; }
    protected TMonoid[] Values { get; init; }

    public SegmentTree(TMonoid[] initial, TOperator op = default)
    {
        Op = op;
        (BaseSize, Height) = (1, 0);
        while (BaseSize < initial.Length) (BaseSize, Height) = (BaseSize << 1, Height + 1);
        var size = BaseSize << 1;
        Values = new TMonoid[size];
        var values = Values;
        for (var i = 0; i < size; i++) values[i] = op.IdentityElement;
        for (var i = 0; i < initial.Length; i++) values[i + BaseSize] = initial[i];
        for (var i = BaseSize - 1; i > 0; i--) Update(values, i);
    }

    public TMonoid Product(int l, int r)
    {
        (l, r) = (l + BaseSize, r + BaseSize);
        var (resL, resR) = (Op.IdentityElement, Op.IdentityElement);
        var values = Values;
        while (l < r)
        {
            if ((l & 1) == 1) resL = Op.Operation(resL, values[l++]);
            if ((r & 1) == 1) resR = Op.Operation(values[--r], resR);
            (l, r) = (l >> 1, r >> 1);
        }
        return Op.Operation(resL, resR);
    }

    public void Set(int index, TMonoid value)
    {
        var j = index + BaseSize;
        var values = Values;
        values[j] = value;
        while ((j >>= 1) > 0) Update(values, j);
    }

    protected void Update(TMonoid[] values, int k) { values[k] = Op.Operation(values[k << 1], values[(k << 1) + 1]); }
}