import std.stdio, std.string, std.conv, std.range;
import std.algorithm, std.array, std.typecons, std.container;
import std.math, std.numeric, std.random, core.bitop;

void scan(T...)(ref T args) {
    auto line = readln.split;
    foreach (ref arg; args) {
        arg = line.front.to!(typeof(arg));
        line.popFront;
    }
    assert(line.empty);
}

void fillAll(R, T)(ref R arr, T value) {
    static if (is(typeof(arr[] = value))) {
        arr[] = value;
    }
    else {
        foreach (ref e; arr) {
            fillAll(e, value);
        }
    }
}

bool chmin(T, U...)(ref T x, U args) {
    bool isChanged;
    foreach (arg; args) if (x > arg) {
        x = arg;
        isChanged = true;
    }
    return isChanged;
}

bool chmax(T, U...)(ref T x, U args) {
    bool isChanged;
    foreach (arg; args) if (x < arg) {
        x = arg;
        isChanged = true;
    }
    return isChanged;
}


enum inf = 1_001_001_001;
enum infl = 1_001_001_001_001_001_001L;

long[] factor(long N) {
    long[] res;
    for (long p = 2; p*p <= N; p++) {
        while (N % p == 0) {
            res ~= p;
            N /= p;
        }
    }
    if (N > 1) {
        res ~= N;
    }
    return res;
}

void main() {
    int n;
    scan(n);
    auto d = factor(n);
    writefln("%s: %(%s %)", n, d);
}

