Answer:
No
Step-by-step explanation:
Relatively prime means that the only common factor the 2 numbers share is 1
factors of 16 are 1, 2, 4, 8, 16
factors of 40 are 1, 2, 4, 5, 8, 10, 20, 40
common factors are 1, 2, 4, 8
Hence 16 and 40 are not relatively prime