0
31 is the only one that has only two factors: 1 and itself. It is the Prime number.
What else can I help you with?
Related Questions
Which of 21 31 51 and 91 is a prime number?
31 is a prime number.
Which number is a prime 91 51 31 or 21?
31
Which is a prime number 91 51 31 21?
31
Which number is prime 91 51 31 21?
31
Which is not a prime number 17 23 31 or 51?
51 is not a prime number: 3x17=51
Which number is prime out of 91 51 31 21?
21 is divisible by 3 and 7, so it is composite. 91 is divisible by 7 and 13, so it is composite. 51 is divisible by 3 and 17. 31 is divisible by only 1 and itself, so it is the prime number.
What is a prime number 17 23 31 51?
51 is composite number
Which number is a prime number a.91 b.51 c.31 d. 21?
91 = 13*751 = 17*321 = 3*731 is prime. â–
Which number is a composite number 51 41 31 11?
51 is composite.
Are 31 and 51 prime numbers?
31 is prime, but 51 is not as 51=3*17.
Are 40 and 51 relativly prime?
51 is not a prime number. It is divisible by 3.
Which is not a prime number between 17 23 31 and 51?
51 = 3 x 17
Trending Questions
Which animals end with the letter B?
What legendaries are there in Pokemon Crystal?
What will happen when the body loses water?
What is the value of a mossberg model 25A?
What is a name for a 80 degree angle?
What are the benefits of using stainless steel brewing equipment for home brewing?
What war took place between Napolean the First and Russia in 1812?
Why were the Crusades a failure for the Church?
If you drop your child off child support in Texas will they deny her medicaid?
Is it el or la professor?
Where do you use positive and negative integers other than temperature?
What is your dad's nephew's son to you?
Advantages of current transformer?
What is the birth name of Thurman Tucker?
How do you send a photo on gmail on a hp laptop?
What does a circle with brackets around it on the dashboard mean for a 2003 beetle?
How is a magnetic field created?
What is the density of ss304?
How can you put water in water balloons?
Has deep set stomata in its cutin?
Copyright ©2026 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.