# Can you find the odd number in the these numbers ? 2716, 4135, 5321 and 7145

+1 vote
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posted Jul 20, 2015

## 2 Solutions

2 + 7 + 1 + 6 = 16
4 + 1 + 3 + 5 = 13
5 + 3 + 2 + 1 = 11
7 + 1 + 4 + 5 = 17

If you go through the sequence you will see that the numbers add up to be a prime number except in the case of 2716 i.e. 16 which is not a prime number. Hence 2716 is the odd one....

solution Dec 12, 2015
1. It is the only even number, thereby making it stand out of the other odd numbers. The odd number is 2716.
solution Dec 13, 2015

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