Question

### Gauthmathier7762

Grade 10 · 2020-11-03

For any integer n\geqslant2, \langle n\rangle is defned to be the smallest prime factor of n. Which of the following is equal to \langle 100\rangle+\left\langle45 \right\rangle? （ ）

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Answer

4.9(668) votes

### Gauthmathier6966

Grade 10 · 2020-11-03

Answer

C

Explanation

The smallest prime factor of 100 is 2, and the smallest prime factor of 45 is 3. So \langle 100\rangle + \langle 45\rangle= 2+ 3=5. Of the five choices, only \langle35 \rangle=5 .

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