0
Greatest common factor of 20 & 51 is 1.
Factors of 20 are 1, 2, 4, 5, 10 & 20.
Factors of 51 are 1, 3, 17 & 51.
The only common factor is 1, so GCF is 1.
Alternate method:
Prime factorization of 20 = 2x2x5
Prime factorization of 51 = 3x17
From the prime factorizations it is clear that 1 is the GCF of 20 and 51.
Still curious? Ask our experts.
Chat with our AI personalities
RossEvery question is just a happy little opportunity.
Chat with Ross
FranI've made my fair share of mistakes, and if I can help you avoid a few, I'd sure like to try.
Chat with Fran
MaxineI respect you enough to keep it real.
Chat with Maxine
Add your answer:
Earn +20 ptsQ: What is the greatest common factor of 51 and 20?
Write your answer...
Submit
Still have questions?
Continue Learning about Movies & Television
What are the greatest common factors of 102 and 51?
The greatest common factor is 51
What is the greatest common factor shared by 51 and 21?
What is the greatest common factor shared by 51 and 21?
What is the greatest common factor of 12 51 and 92?
Greatest common factor of 12 51 and 92 is 1.
What is the greatest common factor for 102 and 357?
Greatest common factor for 102 and 357 is 51.
What is the greatest common factor of 34 and 51 and 102?
The greatest common factor of 34, 51, and 102 is 17.
Trending Questions
Who plays jerry Seinfeld's dad there were two actors one played him at the beginning of the series?
How do you get to the game Woody was playing on sweet life on deck and how to get to the website?
Why when the toilet got clogged in an old house the water rose to the top and stopped but did not keep flowing as is normally the case?
Average weight and height of a 4-year-old?
When was Kenny from south park born?
What is the channel name were ghost adventures come out?
What is difference between generator and oscillator?
Where to get kings rock in diamond?
Is Xavier international university is fake or is it recognized by HRD and UGC?
Why does the seaman give the narrator a silver fourpenny?
Why do tv shows all have theme songs?
How do you speak Apache?
In The Thomas Crown Affair remake Faye Dunaway plays Pierce Brosnan's?
Which is used to convert ac to unidirectional current?
What is the youngest state in Africa?
What is a boondock's possessive?
Which of the characters on the TV comedy The Odd Couple was the neat freak?
Where can you watch all the Bleach movies in English dubbed?
When was The Seekers created?
Why do you think revolution swept so many African nations following their Independenc from European rule?
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.