Which of these numbers is composite? Choose 1 answer: Choose 1 answer: (Choice A) A 555 (Choice B) B 313131 (Choice C) C 434343 (Choice D) D 454545 (Choice E) E 535353

Question

asked Jun 22, 2021 54.9k views

1 Answer

Brandon Kindred · Answer 1 · 2021-06-28T06:03:37+0000

Answer:

D) 45

Explanation:

5, 31, 43, 53 are prime, which you would know if you know your multiplication tables. 45 = 5·9 is composite