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Question
The sum of exponents of prime factors in the prime-factorisation of 196 is ______.
Options
3
4
5
2
MCQ
Fill in the Blanks
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Solution
The sum of exponents of prime factors in the prime-factorisation of 196 is 4.
Explanation:
Prime factors of 196 = 22 × 72
| 2 | 196 |
| 2 | 98 |
| 7 | 49 |
| 7 | 7 |
| 1 |
∴ The sum of exponents of prime factor = 2 + 2 = 4.
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