[challenge] removal of prime digits in given input?

Question

a number is given as input
like
123456789
the number which is output is to be
1469
i welcome all languages

Answer 1

JavaScript:
alert(prompt("").split("2").join("").split("3").join("").split("5").join("").split("7").join(""));

Answer 2

yeah , i will try it in java
(tomorrow)

Answer 3

https://code.sololearn.com/cR2wIeJ9PoSU/?ref=app

Answer 4

https://code.sololearn.com/cK8EuJ037On5/?ref=app

Answer 5

Should prime be less than 11? What if there is 11 in string?

Answer 6

bhai coming

Answer 7

https://code.sololearn.com/c7gMcD8D2Zbu/?ref=app