What is the smallest integer greater than 237 for which each digit of the integer is a prime number?

Mathematics

2 answers:

Nesterboy [21]3 years ago

6 0

I think the answer is 252 because it is the next possible number with all its digits being a prime number

artcher [175]3 years ago

6 0

Answer:

252

Step-by-step explanation:

Here's how I would argue.

Let the three digits be a, b, and c,

Then the number is abc.

Assume a = 2 and b= 3.

Then c cannot be 8, 9, or 0, because they are not prime numbers.

b cannot equal 4 (not prime), so

Assume that b = 5 (prime).

a cannot be 0 or 1 (not prime), but it can equal 2 (prime).

abc = 252

Thus, 252 is the smallest integer greater than 237 for which each digit is a prime.

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