The HCF of 70, 42, 28 is?
- 14
- 28
- 70
- None of these
Explanation
Factors of 70: 1, 2, 5, 7, 10, 14, 35, 70
Factors of 42: 1, 2, 3, 6, 7, 14, 21, 42
Factors of 28: 1, 2, 4, 7, 14, 28
Common factors: 1, 2, 7, 14 → Highest is 14
So, HCF = 14.
Related MCQs
- 10
- 15
- 20
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
- 18
- 17
- 16
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
