Question 1052009
the sum of three different prime numbers is 40. What is the difference between the biggest two biggest of these two numbers?
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Most prime numbers are odd.
The sum of 3 odd numbers is an odd number.
--> One of the primes is the only even prime number, 2.
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The sum of the other 2 is 38.
--> 7 & 31 by thinking about it for 31 milliseconds.
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Fortunately for you, you didn't have to think.