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Two-digit prime numbers whose digits add up to 10 are:

19

37

73

Q: What 2-digit prime number has a sum of 10 when you add up its digits?

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It is: 11 because 1+1 = 2 which is the smallest prime number

The smallest prime number, of course, is 2. The smallest prime number whose digits add up to 2 is, of course, 2. The next-smallest is 11. It is left as an exercise for the reader to determine whether the other numbers whose digits add up to 2 (e.g. 101, 1001, 10001) are prime.

The only two digit numbers whose digits add up to 17 are 89 and 98. Since 98 is an even number, 89 is prime.

17

No.Take the digits and add them together.2+0+4=6.3 can go into 6 2 times equally.So 204 is prime.

Related questions

2014 ( The sum of the digits = 7, a prime number )

It is: 11 because 1+1 = 2 which is the smallest prime number

17

The smallest prime number, of course, is 2. The smallest prime number whose digits add up to 2 is, of course, 2. The next-smallest is 11. It is left as an exercise for the reader to determine whether the other numbers whose digits add up to 2 (e.g. 101, 1001, 10001) are prime.

The only two digit numbers whose digits add up to 17 are 89 and 98. Since 98 is an even number, 89 is prime.

838

No. It is divisible by 3, as you will see if you add up the digits.

No. It is also divisible by 3, as you will see if you add the digits of the number together.

17

67

23 or 41

Since its digits add up to a multiple of three, it's divisible by three. That means it's not prime.