Answer:
38 and 40 aren't relatively prime because they can be divided by 2, 4, 10, and any numbers that multiply to 38 or 40. Like 4×10=40. You can divided 38 and 40 with any number while 5 can be divided once with 1.
Step-by-step explanation:
Primes is that you can multiply a number something to get that number. For example: 3×3=6 and 1×6=6 but their one multication of 5 like 1×5.
