Teaching BPSC बिहार प्राथमिक (1 to 5) शिक्षक भर्ती 4.0 Mock Test Quantitative Aptitude Number System LCM and HCF
The HCF of two different numbers is always 1, when:
1
one number is odd and the other number is even
2
both numbers are odd numbers
3
both numbers are prime numbers
4
More than one of the above
5
None of the above