Question

The LCM of 5³ × 8² × 12 , 5² × 12² × 16 and 8³ × 12² × 16² is:

Asked in RRB JE CBT 1 · 2025
LCM and HCF · Quantitative Aptitude
Exam PYQ4 Options
Quantitative AptitudeNumber SystemLCM and HCFLCMRRB JE CBT 12025
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Quick Revision

When divisors share factors, do not simply multiply them; use their LCM to avoid duplication.

Correct AnswerCorrect option for this question
Option C — 221 × 32 × 53

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Questions Asked from LCM: Prime Factorisation & The Ladder Method in Previous Exams

See how often LCM: Prime Factorisation & The Ladder Method has appeared in previous-year questions across major government exams.

High Exam Frequency
15UPSC Questions Asked in These Years:2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2022, 2023, 2024, 2026
9SSC Questions Asked in These Years:2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
7Railways Questions Asked in These Years:2016, 2018, 2021, 2022, 2024, 2025, 2026
16State PSC Questions Asked in These Years:2002, 2004, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
LCM: Prime Factorisation & The Ladder Method has appeared in 47 previous-year exam questions, most frequently in State PSC, UPSC and SSC.
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