Question

The prime factarisation of 140 is option (a) 2×3×5×7​

Answer 1

Answer:

2×2×5×7

Step-by-step explanation:

140 is composite number.

Factor pairs:140=1×140,2×70, 4×35,5×28, 7×20, 10×14

Factors of 140:1,2,4,5,7, 10,14, 28,20,35, 70,140

Prime factorizarion:140=2×2×5×7