Question:medium
How many factors of $19!$ are there, whose unit digit is 5?
How many factors of $19!$ are there, whose unit digit is 5?
Show Hint
For unit digit problems:
- Ending in 0 → both 2 and 5 present
- Ending in 5 → only factor 5 present (no 2)
Updated On: Apr 1, 2026
- \(1298 \)
- \(1296 \)
- \(1295 \)
- \(1297 \)
- \(1291 \)
Show Solution
The Correct Option is B
Solution and Explanation
Was this answer helpful?
0
Top Questions on Multiples and Factors
- What number will replace $A$, if $3313A$ is divisible by 33?
- MAH MBA CET - 2025
- Quantitative Aptitude
- Multiples and Factors
- Which of the following divides $3^{45 + 3^{46} + 3^{47} + 3^{48} + 3^{49}$?
- MAH MBA CET - 2025
- Quantitative Aptitude
- Multiples and Factors
- How many numbers are there in between 55 and 3815, which are multiples of 5 and divisible by 3?
- MAH MBA CET - 2025
- Quantitative Aptitude
- Multiples and Factors
- Three wheels can complete 25, 21 and 16 revolutions per minute respectively. There is a red spot on each wheel that touches the ground at time zero. After how much time, all these spots will simultaneously touch the ground again?
- MAH MBA CET - 2025
- Quantitative Aptitude
- Multiples and Factors
- Want to practice more? Try solving extra ecology questions todayView All Questions
