Answer: Heyaa!~
- Write 63 as the product of prime factors -
- Since, the prime factors of 63 are 3, 7. Therefore, the product of prime factors = 3 × 7 = 21.
- Write the prime factors in ascending order -
- what's the highest common factor of 63 and 105 -
- 21, divides both 63 and 105, i.e., 21.
Hopefully this helps you! ^^^