Question

10
Find the HCF of the number in each of the following using the prime division method:
20,89
58.70
399.437
13.
12. 1045,1520
1965, 2096
2241.2324
658.940. 1128
16. 754, 1508, 1972 17. 391. 425,527 18. 1794, 2346, 4761​

Answer 1

• 20=2x2x5

89=1x89

So, HCF =1

•58=2x29

70=2x5x7

So, HCF=2

•399=3X133

437=1x437

So, HCF=1