Warm up… Factor Patterns Learning Objective: To investigate the factors of a number Success Criteria:  To be able to identify the factors of a number.

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Presentation transcript:

Warm up…

Factor Patterns Learning Objective: To investigate the factors of a number Success Criteria:  To be able to identify the factors of a number  To identify the type of number by identifying the number of factors it has

Factor Patterns What is a Factor? A Factor of a number is a number that divides into ANOTHER number without a REMAINDER. Factors of 6  Factors of 10  Factors of 25 

Factor Patterns Draw a table like the one to the right. It will need 26 rows, including the headings at the top. Fill in the middle and right columns. Make sure you check your answers If you finish… –Which numbers have 2 factors? –Which numbers have an odd number of factors? Why? NumberFactors How many Factors? , 22 31, 32 41, 2, 43 … … … 251, 5, 253

Factor Patterns 31, 5, , 2, 3, 4, 6, 8, 12, , , 2, 11, , 3, 7, , 2, 4, 5, 10, , , 2, 3, 6, 9, , , 2, 4, 8, , 3, 5, , 2, 7, 1414 How many Factors? FactorsNumber 21, , 2, 3, 4, 6, , , 2, 5, , 3, 99 41, 2, 4, 88 21, , 2, 3, 66 21, 55 31, 2, 44 21, 33 21, How many Factors? FactorsNumber

Factor Patterns Numbers with 2 Factors only –2, 3, 5, 7, 11, 13, 17, 19, 23 –What types of number are these? –Prime numbers (The only numbers that divide into them are 1 and themselves) Numbers with an odd number of Factors –1, 4, 9, 16, 25 –What types of number are these? –Square numbers (you can make by multiplying the same number together  1x1, 2x2, 3x3 etc…)