Problem 52 - Squirrel

Squirrel is a nice C-like language with curly braces.
Problem 52 was not terribly hard to begin with.
My solution runs in .646s.
Squirrels are cool.
I am in the middle of writing my own esolang based on them that may eventually come to fruition, but alas, Squirrel is not as arcane as that language plans to be.

function digits(x) {
    local arr = [];
    while (x > 0) {
        arr.append(x % 10);
        x /= 10;
    }
    return arr;
}

function arePermuts(x, y) {
    local xdigs = digits(x);
    local ydigs = digits(y);
    xdigs.sort(@(a,b) a <=> b);
    ydigs.sort(@(a,b) a <=> b);
    if (xdigs.len() == ydigs.len()) {
        for (local i = 0; i < xdigs.len(); ++i) {
            if (xdigs[i] != ydigs[i]) {
                return false;
            }
        }
        return true;
    }
    return false;
}

function mag(x) {
    if (x < 10) {
        return 10;
    } else {
        return 10 * mag(x / 10);
    }
}

local n = 1;
for(;;) {
    if (mag(n) < mag(6*n)) {
        n = mag(n);
    } else {
        if (arePermuts(n, 2*n) && arePermuts(2*n, 3*n) && arePermuts(3*n, 4*n) &&
            arePermuts(4*n, 5*n) && arePermuts(5*n, 6*n)) {
                print(n + "\n");
                break;
        } else {
            n += 1;
        }
    }
}