0
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 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
What number is a prime number 91 51 31 21?
31 is the only one that has only two factors: 1 and itself. It is the prime number.
Which is not a prime number 17 23 31 or 51?
51 is not a prime number: 3x17=51
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
What are the duties and responsibilities of a mess boy?
What organization collects blood?
What were some of the targets of Juvenal's satires?
Who is the blonde woman at the end of the Samsung Galaxy Note 2 advert?
What is the prime factorization 340?
When did Ryan Halligan kill himself?
What is the function of sensival-p tablet?
What would happen if you had no reflexes?
How did Albert Einstein overcome his obstacles?
Will kicking your bedpost break your foot?
What is fifteen percent of eighty-four add eighty-four?
You are Canadian and want to go to Vegas via land to bellingham and fly out of bellingham Do you need a passport?
What does ABS class notation A1 Tank barge mean?
How and why did American agriculture and industry develop so dramatically in the late 19th and 20th century?
How does a cowboy say goodbye?
What does it mean when half eaten food is left on your window sill and nobody can explain it?
How effective is unification therapy in treating individuals with dissociative identity disorder?
What is the pot Lord Shiva holds?
What two operations can you apply to a ratio to create an equivalent ratio?
Why is an arms race a bad thing?
Copyright ©2025 Answers.com. 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.