Q: What is the largest 3 digit number that is a prime number?

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997 is the largest 3-digit prime number.

The largest 3 digit number whose digits are all primes is 777. The largest 3 digit number with different prime digits is 753.

The 3 largest 2 digit prime numbers are 83, 89, and 97. The sum is 269

997

How about: 777 or 753

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997 is the largest 3-digit prime.

997 is the largest 3-digit Prime number.

997 is the largest 3-digit prime number.

The largest 3 digit number whose digits are all primes is 777. The largest 3 digit number with different prime digits is 753.

The 3 largest 2 digit prime numbers are 83, 89, and 97. The sum is 269

997

997 is the highest number.It is 997.

The largest 5-digit whole number is 99,999. Its prime factorization is: 3 x 3 x 41 x 271

997

The largest staircase comosite largest staircase composite is the number 2223 because 1 is not counted as a prime so the 1 digit prime is 2, the smalles 2 digit prime is 11 and smallest 3 digit prime is 101

How about: 777 or 753

largest 5 digit number: 99999 3,3 99999/3/3=11111 11111/41=271 3, 3, 41, 271