prevPow

Find largest power-of-n less than or equal to given number.

Similar: isPow, prevPow, nextPow.

function prevPow(x, n)
// x: a number
// n: base

const xnumber = require('extra-number');


xnumber.prevPow(32, 2);
// → 32

xnumber.prevPow(35, 2);
// → 32

xnumber.prevPow(35, 3);
// → 27

References

• Previous power of 2