But, not all numbers are the same when it comes ... This can form an introduction to prime and composite numbers, and lead to discussion of ways to speed up identification of primes/composites ...

Thus, 2, 3, 5, 7 and 11 — to name a few — are all prime numbers. Note that the other numbers that divide 36 — the factors of ...

And that’s not all! There’s a Factor Tree BIRD ... are useful because they’re hard to find, especially BIG prime numbers, and Composite numbers with lots of factors are also useful: ever ...