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4..........41,43,47,49

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12y ago
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Ellis Ho

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1y ago

there is more than a trillion

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Q: How many 2 digit prime numbers have 4 as one of their digits?
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Related questions

How many two-digit prime numbers have four as one of their digits?

there are 4


How many two-digit prime numbers can you find that are still prime when you reverse the digits?

61 42 56 89


How many two digit prime numbers are there?

There are 21 two-digit prime numbers.


How many 1 digit numbers can make with 123 digits?

With 123 digits you can make 123 one-digit numbers.


How many 5 digits numbers are there whose digits sum to 22?

There are 5460 five digit numbers with a digit sum of 22.


In all how many two digit prime numbers have 4 as one of their digits?

3 41 43 47


How many 4 digit numbers can be formed from digits 123456789?

5040 different 4 digit numbers can be formed with the digits 123456789. This is assuming that no digits are repeated with each combination.


How many 3 digit numbers can be formed from the digits 357 with any digit repeated?

27 three digit numbers from the digits 3, 5, 7 including repetitions.


How many two-digit primes are there whose units digit is less than its ten digits?

There is no simple formula for that; I suggest you look up the prime numbers in a table of prime numbers, analyzing each prime number in the range 10-99 whether it fulfills this specific criterion.


How many three digit numbers have odd prime number as 1st digit A prime number as 2nd digit and an odd number as 3rd digit?

There are 17 such numbers.


How many 4 digit numbers have 6 as their second digit?

There are 9 digits that can be the first digit (1-9); for each of these there is 1 digit that can be the second digit (6); for each of these there are 10 digits that can be the third digit (0-9); for each of these there are 10 digits that can be the fourth digit (0-9). → number of numbers is 9 × 1 × 10 × 10 = 900 such numbers.


How many two digit whole numbers are increased by 18 when their digits are reversed?

7 two-digit numbers.