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Powers of 3
Powers of 3
The number of ring pieces is the number of times 3 is a factor.
eg. 3*3*3*3=81
*times or multiply*
Powers of 2
Powers of 2
2 to the power of 1 = 2
2 to the power of 2 = 4
2 to the power of 3 = 8
2 to the power of 4=16
Prime Numbers
Prime Numbers
A solid ring or donut indicates a number has only two factors, 1 and itself.
eg. 31*1=31
HCF?
HCF?
What is the Highest Common Factor of the numbers above?
Number 1
Number 1
A special number. It only has one factor, itself. 1*1=1
Number 2
Number 2
A special number.
The only even prime.
The HCF Highest Common Factor of 42 and 36 is 6.
The HCF Highest Common Factor of 42 and 36 is 6.
The LCM Lowest Common Multiple of 6 & 8 is 24.
The LCM Lowest Common Multiple of 6 & 8 is 24.
The HCF of 30 & 40 is 10. How do the colours help?
The HCF of 30 & 40 is 10. How do the colours help?
The LCM of 15 & 10 is 30. How do the colours help?
The LCM of 15 & 10 is 30. How do the colours help?
3 is green
5 is blue
7 is purple
Zero
Family of Facts & Factor Trees
Family of Facts & Factor Trees
