140 is a composite number. Factor pairs: 140 = 1 x 140, 2 x 70, 4 x 35, 5 x 28, 7 x 20, 10 x 14. Factors of 140: 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140. Prime factorization: 140 = 2 x 2 x 5 x 7, which can also be written 140 = 2² x 5 x 7
Let say the number is 0.5 Then, sum of this number will be 0.5+0.5=1 Now two is twice of 1. Hence, it proved to be correct. And difference between 5 and 1 is 4 which is less than 12. It also match the question condition.
