MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Prime and Composite Numbers

How many two-...

Question

How many two-digit prime number can be formed in which boththe digit are prime number

Open in App

Solution

Two digit numbers are from 10 to 99.
So the number of two-digit prime numbers from 10 to 99 are 21.

Suggest Corrections

thumbs-up

0

Similar questions

Numbers ≥ 1000 but ≤ 4000 are formed using digits '0,1,2,3,4' . How many numbers can be formed (repetition allowed)?

Q. How many two-digit prime numbers are there having the digit

3

in their units place?

5

digit numbers can be formed using the digits

1, 2, 3, 4, 5, 6, 7, 8, 9

such that no two consecutive digits are the same?

Q. How many different numbers of two digits can be formed with the digits

1, 2, 3, 4, 5, 6

no digits being repeated?

6

digit number is made using all the digits

1, 2, 4, 5, 7, 8

, then the position of number

^{''} 541782^{''}

in ascending order when all digits formed are arranged in ascending order is

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

1 for All

MATHEMATICS

Watch in App

explore_more_icon

Explore more

Prime and Composite Numbers

Standard IV Mathematics

Join BYJU'S Learning Program

CrossIcon