Look at the pattern shown. 144, 72, 36, …What is the first non-integer number in this pattern?

The first non-integer number in this sequence is 4.5.

Step-by-step explanation:

Half of 144 is 72, half of 72 is 36, half of 36 is 18, half of 18 is 9, and half of 9 is 4.5. Therefore, 4.5 is the first non-integer in this sequence.

∴ HCF of 145 and 232 = 29

Since, LCM = product of numbers / HCF

= 145 × 232 / 29

= 5 × 232

= 1160

∴ LCM = 1160 and HCF = 29