Prime Factorisation|Divisibility Test

Test of divisibility

Factor|Prime Number|Prime Factorisation|Question Practice

What can you say about the prime factorisations of the denominators of the following rationals:

Tests of divisibility by 5

Tests of divisibility by 2

Tests of divisibility by 3

Tests of divisibility by 9

Tests of divisibility by 6

Tests of divisibility by 4

Prime And Composite Numbers|Eratosthenes|Even And Odd Numbers|Practice Questions|Test For Divisibility Of Numbers