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Q: What is the sum of the first three prime numbers that end with a 9?

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83

19 + 29 + 59 = 107

You end it when all the numbers are prime.

Other than 2, no prime numbers are even. So prime numbers can't end in even numbers. After 5, no prime number can end in 5. After 5, all prime numbers end in 1, 3, 7 or 9.

No.

Lots of prime numbers have zeros in them. 101, 103, 107 and 109 are all prime numbers. Prime numbers can't end in zero. Numbers that end in zero are multiples of ten and have too many factors to be prime numbers.

2 and 5 are the only prime numbers that end in 2 or 5.

After 5, all prime numbers end with 1, 3, 7 or 9.

No. If they end in 4, they are even numbers and divisible by 2, and therefore are not prime.

they end whith what

Two and five!

There are an infinite amount of prime numbers, as numbers never end. Prime numbers are numbers that are only divisible by 1 and itself. For example, 2, 3, 5, 53, and 97 are prime numbers.

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