0
An HCF is the product of any common prime factors of two numbers. If two numbers have no common prime factors, then the HCF will be 1.
For example, 10 and 21. The prime factors are 2x5 and 3x7. There is nothing in common, and so the HCF of 10 and 21 is 1.
Two consecutive numbers will always have the HCF of 1.
Still curious? Ask our experts.
Chat with our AI personalities
ProfessorI will give you the most educated answer.
Chat with Professor
RossEvery question is just a happy little opportunity.
Chat with Ross
JordanLooking for a career mentor? I've seen my fair share of shake-ups.
Chat with JordanAdd your answer:
Earn +20 ptsQ: What numbers have an HCF of 1?
Write your answer...
Submit
Still have questions?
Continue Learning about Other Math
What is the HCF of 16 and 3?
The GCF is 1.
What is the HCF of 24 and 5?
The GCF is 1.
What is the HCF of 26 and 45?
HCF(26, 45) = 1. The numbers are co-prime.
What goes into 63 and 8?
The HCF of both numbers is 1
Can the HCF of two numbers be a factor of their LCM?
The HCF is always a factor of the LCM of two numbers. The HCF is a factor of both the numbers which are factors of their LCM. Thus the HCF is also a factor of the LCM of the two numbers.
Trending Questions
Is 4 cups less than 40 fl oz?
What is the value of 3 in 2.73?
How much is a 1995 mewtowo card worth?
What is a number obtained by raising a base to an exponent?
What the multiplication maze of 360?
A piece of string is 2 1/2 m long.If John cuts off one piece 60 cm long and another 80 cm long, what is the length of the remaining piece of string?
How many roofing nails in a 5 lb box?
IS-800b test answers?
What is the answer to 24x12?
How many Square mm in a 1 inch round circle?
What are the two square roots of 400?
What is 0.76 rounded to the nearest tenth?
What is another word for sandpaper?
What is the radius of a circle with an area of 50 square meters?
How do you find the base and exponent of a number?
Can a circle pass through three points of a straight line?
How many times does 32 go into 72?
There are 256 students going on a field trip Each bus holds 30 students How many buses will they use?
Is 2 more than 5?
What is simplest form of .21875?
Copyright ©2025 Infospace Holdings LLC, A System1 Company. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Answers.