Question

HCF of 117 and a another number is 17 . then which number will not be second number?​
a.130
b.169
c.143
d.156

Answer 1

I think the question is HCF of 117 and a number is 13.

Ans:(d)156

Step-by-step explanation:

prime factors of 117=3×3×13

prime factors of 130=2×5×13

prime factors of 143=13×11

prime factors of169=13×13

prime factors of 156=2×2×3×13

so, HCF of 117 and 130=13

HCF of 117 and 169=13

HCF of 117and 143=13

HCF of 117 and 156=13×3=39