All prime numbers ending in 1, 3, 7 or 9.
For example,
31 and 71
23 and 43
17 and 47
19 and 79.
If you're asking us to type the tens of millions of known prime numbers, the answer is no.
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.
Ten.
754 Piece of cake!
There are two of them and they are 61 and 67
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.
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.
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.
91
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.
Tenths.
16