If two positive integers p and q can be expressed as where a and b are prime numbers, then LCM (p, q) is :

STUDY MATERIALS
COURSES
MORE
SUCCESS STORY
ADMISSION
STORE

Back

JEE ADVANCE

CLASS XI - XII
CRASH COURSE

CLASS XI - XII

CRASH COURSE

JEE MAIN

CLASS XI - XII
CRASH COURSE

CLASS XI - XII

CRASH COURSE

NEET

CLASS XI - XII
CRASH COURSE

CLASS XI - XII

CRASH COURSE

BITSAT

CLASS XI - XII

CLASS XI - XII

CBSE BOARD

CLASS IX

CLASS X

CLASS XI

CLASS XII

CLASS VI

CLASS VII

CLASS VIII

UP BOARD

CLASS IX
CLASS X
CLASS XI
CLASS XII

CLASS IX

CLASS X

CLASS XI

CLASS XII

CUET

CRASH COURSE

CRASH COURSE

Courses

CLASSROOM COURSES
ONLINE COURSES

ONLINE COURSES

More

Solution

Q.
If two positive integers p and q can be expressed as $p = 18 a^{2} b^{4} and q = 20 a^{3} b^{2},$ where a and b are prime numbers, then LCM (p, q) is :

1 $2 a^{2} b^{2}$

2 $180 a^{2} b^{2}$

3 $12 a^{2} b^{2}$

4 $180 a^{3} b^{4}$

Ans.
(4)

Given, $p = 18 a^{2} b^{4}$ and $q = 20 a^{3} b^{2}$

$LCM (p, q) = LCM (18 a^{2} b^{4}, 20 a^{3} b^{2}) = 180 a^{3} b^{4}$

Want Us to Email you About Special Offers & Updates?