Number series:Choose which one is the different number from the following
Correct answer: B. 131
- A. 125
- B. 131
- C. 130
- D. 138
Explanation
A prime number has only two factors, itself and one. A composite number has at least three factors, and sometimes a lot more.From the definition 131 is a prime number and 125, 130 and 138 are not so only option B is different
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Series questions use numbers, letters, symbols or combinations arranged according to a hidden pattern. You may need to identify repeated operations, alternating rules, alphabetical positions, differences, reversals and mixed sequences to find a missing term or predict the next one.
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