16
2*2*2*2
24
3*2*2*2
100
5*2*5*2
All factors of 48
1*48
2*24
3*16
4*12
6*8
1000
5*2*5*2*5*2
All factors of 124
1*124
2*62
4*31
1,524
2*2*3*127
The only number that is neither prime nor composite.
What is 1?