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 does calms cal vu mean?
How was Hygiene in Great Britain in 1550?
What is the worth of a JFK 1776-1976 half dollar?
Do guinea pigs like to be held and played with?
A circuit diagram for a LG KU990 mobile phone?
What are the names of the four friends of Prophet Muhammad?
In wizardology where is the handy halter?
What are the Benefit of theories of nation building?
What does mr Morrison expect Stacey to do when he says hes not going to tell Staceys mother about going to the Wallace's store?
Major highways in Italy?
Polyester film capacitor do they have a direction a positive or negative?
What is the synonym for freight?
Do baby zebras have stripes?
What is a 5 stroke drum roll?
How do you convert 5cm to m?
Does selective cross breeding cause infertility?
What is reaction while taking curd with non vegetable?
What is the waterway between Morocco and Spain called the what of Gibraltar?
Which is better panthers or wolves?
How much 1944 5 franc are worth in the US?
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.