Question

what is the HCF of 21,7,18 ​

Answer 1

Answer:

HCF is 1

Step-by-step explanation:

because all the number are not divisible with a same no.

Answer 2

Answer = 1

Step-by-step explanation:

Factors for 7: 1 and 7

Factors for 18: 1, 2, 3, 6, 9, and 18

Factors for 21: 1, 3, 7, and 21

Commons Factor's = 1

High common factor = 1

HCF = 1