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The HCF is the largest number that both numbers can be divided by. If the HCF is 1, that would suggest that the two numbers share no prime factors. Thus, any two numbers which are coprime will have an HCF of 1. Consecutive numbers are good examples here - 15 and 16, 27 and 28, 104 and 105, all have an HCF of 1.
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Earn +20 ptsQ: Is the HCF of two numbers ever 1?
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HCF of 100?
You need at least two numbers to find a GCF.
What is hcf of 9 and 11?
HCF is the highest common factor of two or more numbers. As they 9 and 11 are co-primes hence HCF is 1.
What is the HCF of 680?
To have a HCF, you need at least 2 numbers. There is no HCF in just 1 number.
When the HCF of two numbers is 1 what they are called?
Relatively prime or co-prime.
What is the greatest common factor of two consecutive numbers?
The GCF of two consecutive numbers is always 1. The GCF of any set of numbers can't be greater than the smallest of the differences between the numbers.
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