Question 33245
Prime factorisation of 120:

120
2*60
2*2*30
2*2*2*15
2*2*2*3*5


In 3*4=12 the factors of 12 are 3 and 4. 12 also has factors 2 and 6.


Prime Numbers: only divisible by itself and 1... you need some trial and error to find them. Learn your "times tables".


So use this info to work out the questions.


Jon.



jon.