What do you mean, "the" two factors? There are much more than two factors, even if you only consider natural numbers.
1000000
Multiples of 6 are even composite numbers.
$1000000 a year
All even numbers are divisible by 2.
There is only one even prime number...2
If you count from 1 to 1000000 you count 1000000 numbers so there are 1000000 numbers in 1000000
That's one number.
78498
7 numbers in one million 1000000
Start with 2, then add 2 at a time, until you reach a million. This will give you all the even numbers.
That's an infinite list.
One significant figure.
The are 78498 prime numbers smaller than 1 million.
2*500000=1000000
more than you could ever dream of
42 hoe