Chen chooses a prime number. He multiplies it by 10 and then rounds it to the nearest hundred. His answer is 400 Write all the possible prime numbers Chen could have chosen.

Question

chen needs all the possible prime numbers he can get till 400

Answer 1

THe product must be between 350 and 450, so that it rounds to 400.

dividing by 10 gives a prime number between 35 and 45

SO 37,41 and 43