Question

6.Find the HCF of 513 and 783

Answer 1

Prime factors of 513 and 789:

• 513 = 3 x 3 x 3 x 3 x 19

• 783 = 3 x 3 x 3 x 29

Goes into 513  and 789:

• 3 x 3 x 3

Goes into only 513:

• 3 x 19

Goes into only 789:

• 29

Hcf = 3 x 3 x 3 = 27