Question

Which of the following statements is not true?

15 = 3 × 5
18 = 2 × 3 2
The GCF of 15 and 18 is 5.
The LCM of 15 and 18 is 90.

Answer 1

Answer: 18 = 2 × 3² isnt correct

Answer 2

18=2× 3 2 is not correct.

The GCF of 15 and 18 is not 5.

Explanation:

32×2 is 18 it is 64.

The GCF of 15 and 18 is 3. 18 is not divisible by 5.

Hope this helped!!