Question

prime factraction find HCF Of 21,35and 49

Answer 1

Step-by-step explanation:

Greatest common factor (GCF) of 21 and 35 is 7. We will now calculate the prime factors of 21 and 35, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 21 and 35.

Answer 2

Answer:

21,35,49

now,

21=7×3

35=7×5

49=7×7

so,

HCF=7