@mathigon/fermat/test/number-theory-test.ts

Powerful mathematics and statistics library for JavaScript.

// =============================================================================
// Fermat.js | Number Theory Tests
// (c) Mathigon
// =============================================================================


import tape from 'tape';
import {eulerPhi} from '../src';


tape('eulerPhi', (test) => {
  test.equal(eulerPhi(36), 12);
  test.equal(eulerPhi(1), 1);
  test.equal(eulerPhi(667), 616);
  test.equal(eulerPhi(243), 162);
  test.equal(eulerPhi(101), 100);
  test.equal(eulerPhi(1234567890), 329040288);
  test.equal(eulerPhi(12345678923), 12345678922);
  test.equal(eulerPhi(720720), 138240);
  test.equal(eulerPhi(2 * 3 * 5 * 7 * 11 * 13 * 17 * 19 * 23 * 29 * 31), 30656102400);

  test.throws(() => eulerPhi(0));

  test.end();
});