The prime factorisation of 140 is A2 × 5 × 7 B2² × 5 × 7 C2² × 3 × 7 D2³ × 5 × 7 Tap an answer to check. Show the answer Answer: B. 2² × 5 × 7 140 = 2 × 2 × 5 × 7 = 2² × 5 × 7. Report a problem The answer is wrong Spelling or typing mistake The question is unclear Out of date Something else Send