Find the LCM of 9, 21 and 63
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e 63.
Prime Factorization
9 = 3²
21 = 3 × 7
63 = 3² × 7
Highest power of 3 = 3²
Highest power of 7 = 7
LCM = 3² × 7 = 9 × 7 = 63
SSC MTS 2024 PYQ — Question 2
SSC MTS - 22/10/2024 - (4:00 PM - 5:30 PM) • Quantitative Aptitude • Q2