Question

use prime factorisation method to determine the h.c.f of 520,1430

Answer 1

prime factors of 520=2×2×2×5×13

prime factors of 1430=2×5×11×13

∴comman factors of 520 and 1430 are 2×5×13

∴2×5×13=130

ANS h.c.f =130

Answer 2

Answer:

520 1420 This number HCF