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Question : How many positive factors of 40 are there?

Option 1: 3

Option 2: 12

Option 3: 6

Option 4: 8


Team Careers360 25th Jan, 2024
Answer (1)
Team Careers360 26th Jan, 2024

Correct Answer: 8


Solution : 40 = 2 3 × 5
If N = a m × b n , where a and b are prime numbers, the number of positive factors of N = (m+1) × (n+1)
The number of positive factors of 40 = (3+1) × (1+1) = 8
Hence, the correct answer is 8.

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