0
Still curious? Ask our experts.
Chat with our AI personalities
ReneChange my mind. I dare you.
Chat with Rene
BlakeAs your older brother, I've been where you are—maybe not exactly, but close enough.
Chat with Blake
CoachSuccess isn't just about winning—it's about vision, patience, and playing the long game.
Chat with Coach
Add your answer:
Earn +20 ptsQ: What is the greatest common factor of 16 and 21?
Write your answer...
Submit
Still have questions?
Continue Learning about Basic Math
What is the least common factor of 16 and 21?
The factors of 16 are 1, 2, 4, 8, and 16. The factors of 21 are 1, 3, 7, and 21. The only common factor is 1; they are relatively prime. The least (or lowest) common factor is 1. The greatest (or highest) common factor is 1.
What is the greatest common factor of 21 and 75?
The greatest common factor of 21 and 75 is 3.
What is the greatest common factor of 21 and 322?
The greatest common factor of 21 and 322 is 7.
What is the greatest common factor of 105 and 147?
The greatest common factor of 105 and 147 is 21
What are the common factors and greatest common factor of 21 and 42?
The common factors of 21 and 42 are 3, 7 and 21. The greatest common factor (GCF) is 21.
Trending Questions
What are the factors of 2620?
What does it mean for a product of factors to be expressed using exponents?
How do you write 8.1 billion?
What is the largest prime factor of 12?
What is 2.457 rounded to the nearest whole number?
What is 845.05 in word form?
Is an imaginary number always sometimes or never a complex number?
Composite numbers between 25 and 40?
What is 204 rounded to the nearest 100?
What is 30 percent off of 80 dollars?
How do you write 0.43 as a fraction in simplest form?
What is 388 rounded to the nearest hundred?
How do you write 110 as the product of prime factors?
How do you calculate your house mortgage?
Make an improper fraction of 16?
Prime factorization of 50?
How do you write 0.40 in word form?
Define irrational numbers?
How do you Write 0.48 as a fraction?
How do you convert decimal percent to a fraction?
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.