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All prime numbers ending in 1, 3, 7 or 9.

For example,

31 and 71

23 and 43

17 and 47

19 and 79.

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10y ago

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Related Questions

All the prime numbers that can be found?

If you're asking us to type the tens of millions of known prime numbers, the answer is no.


Two prime numbers between 100 and 199 such that the tens digit is a prime number and the tens and ones digit taken together are a 2 digit prime number find the sum of these two prime numbers?

For the tens digit to be a prime number then it must equal 2, 3, 5 or 7. There are four 3-digit prime numbers that fit the above condition and also have the tens and units digits forming a 2-digit prime number. 131, 137, 173, 179. The person supplying the question may like to sum the various combinations.


How many 2 digit prime numbers are there whose unit digit is greater its tens digit?

Ten.


Your hundreds and tens digits are prime numbers whose sum is 12 and product is 35 your units digit is one less than your tens digit your date is an even number what are you?

754 Piece of cake!


Is there only one two-digit prime number that has 6 as a tens digit?

There are two of them and they are 61 and 67


How do you write 14 tens in numbers?

Oh, isn't that just a happy little question? To write 14 tens in numbers, you simply write the number 140. It's like painting a beautiful landscape with numbers, creating a peaceful scene on the canvas of mathematics. Just remember, there are no mistakes, only happy little numbers.


Is 751 a prime number?

To determine if 751 is a prime number, we need to check if it has any factors other than 1 and itself. To do this, we can try to divide 751 by prime numbers starting from 2. If we find any factor other than 1 and 751, then 751 is not a prime number. In this case, after checking, we find that 751 is not divisible by any prime numbers other than 1 and 751 itself, so 751 is a prime number.


How many numbers have 3 tens?

Numbers that have 3 tens range from 30 to 39. This includes all the integers from 30 to 39, which totals 10 numbers: 30, 31, 32, 33, 34, 35, 36, 37, 38, and 39. Therefore, there are 10 numbers that have 3 tens.


The sum of your ones digit and tens digit is 10 your tens digit is greater than your ones digit you are prime what are you?

91


How do you write 78 tens in numbers?

Oh, what a lovely question! To write 78 tens in numbers, you simply multiply 78 by 10. So, 78 tens is equal to 780. Just imagine those 78 bundles of ten, creating a beautiful number that can bring joy to your day.


What place value would you use to compare the numbers 61.02 and 61.12?

Tenths.


The sum of my ones and tens digit is 10. My tens digit is greater than my ones digit. i am a prime number what number am i?

16