Math, asked by ramya7, 1 year ago

find the highest common factor(hcf) of 21,28,36,45

Answers

Answered by Warzone
17
Solutions 

⇒ Common factors occur when two or more numbers share one or more of the same factors.

⇒ The factors of a number is the set of all non-zero numbers that divide into the number evenly. For example, the factors of the number 12 would be as follows: 

Factors of 12: 1, 2, 3, 4, 6, 12 

Because ... 

⊄ 1 x 12 = 12

⊄ 2 x 6 = 12

⊄ 3 x 4 = 12


⇄ The greatest common factor is the highest factor that two or more numbers share. 

Number                                  GCF Divisor         Factors of Number 

21                                           21 ÷ 1 = 21            1, 3, 7, 21 

28                                           28 ÷ 1 = 28            1, 2, 4, 7, 14, 28

36                                           36 ÷ 1 = 36            1, 2, 3, 4, 6, 9, 12, 18, 36

45                                           45 ÷ 1 = 45            1, 3, 5, 9, 15, 45 

According to my calculations, the greatest common factor of the numbers 21, 28, 36 and 45 is 1



ramya7: Thank yoy
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Answered by soumya1008
6

1 is highest common factor

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