Prime Number Questions

[RedDevil66]

Hi Folks
Any good sites/worksheets for calculating and practising the type of questions. e.g

Which three prime numbers multiply together to make 154?

[Choccy74]

2, 7 and 11

[solimum]

Googled "Prime factorisation worksheet" and got this:

https://www.easyteacherworksheets.com/m ... ctors.html" onclick="window.open(this.href);return false;

Lots of understanding about odd/even numbers, knowing the tricks to see what numbers are divisible by 3 / 5 etc is really needed, and then lots of practice at dividing by 2/3/5/7 - there are no short cuts

[RedDevil66]

Googled "Prime factorisation worksheet" and got this:

https://www.easyteacherworksheets.com/m ... ctors.html" onclick="window.open(this.href);return false;

Lots of understanding about odd/even numbers, knowing the tricks to see what numbers are divisible by 3 / 5 etc is really needed, and then lots of practice at dividing by 2/3/5/7 - there are no short cuts

Thanks a lot. Very helpful