Question

What four digit palindrome has exactly one factor that is prime? Please explain:)

Answer 1

only prime numbers have 1 factor that is prime.

Answer 2

Please someone help! :)

Answer 3

all numbers have a unique prime factorization. a number with only 1 prime factor .. is a prime number.

you want a 4 digit prime number that reads forward and backwards the same

Answer 4

Thank you:)

Answer 5

youre welcome: your number will most likely start and end with either 1s, 3s, 7s, or 9s

which narrows down the pool a bit