Create a function that takes a vector of integers and returns true if every number is prime. Otherwise, return false.

Examples

all_prime({7, 5, 2, 4, 6}) ➞ false

all_prime({2, 3, 5, 7, 13, 17, 19, 23, 29}) ➞ true

all_prime({1, 5, 3}) ➞ false

Notes

1 is not a prime number.