Question

Identify the greatest common factor of 12a4b7
and 18a5b3
.(1 point)
Responses

6a5b7
6 a superscript 5 baseline b superscript 7 baseline

12a5b7
12 a superscript 5 baseline b superscript 7 baseline

12a4b3
12 a superscript 4 baseline b superscript 3 baseline

6a4b3

Answer 1

6a^4b^3

Reason: gcd(12,18)=6; take the smaller exponents: a^(min(4,5)) = a^4 and b^(min(7,3)) = b^3, so 6a^4b^3.