0
All of them??? There are probably infinitely many. Here are the first few numbers with 1 in the units place:
1: Not usually considered a Prime number.
11: Prime
21: Not prime (divisible by 3)
31: Prime
41: Prime
51: Divisible by 3
61: Prime
71: Prime
81: Divisible by 3
91: Divisible by 7
101: Prime
...
Still curious? Ask our experts.
Chat with our AI personalities
DevinI've poured enough drinks to know that people don't always want advice—they just want to talk.
Chat with Devin
MaxineI respect you enough to keep it real.
Chat with Maxine
BeauYou're doing better than you think!
Chat with BeauAdd your answer:
Earn +20 ptsQ: What are all the prime numbers with 1 in the units place?
Write your answer...
Submit
Still have questions?
Continue Learning about Math & Arithmetic
Why numbers with a five in the ones place are not prime numbers?
All but the number five are multiples of 5.
Are prime numbers rational numbers?
All prime numbers are rational.
Do all prime numbers have prime factorization?
There is no need to do prime factorization as prime numbers are already prime.
Why are all the prime numbers are odd numbers?
All prime numbers are not odd numbers. 2 is an even prime number, and it is the only even prime number because all other even numbers have 2 as one of their factors.
What are all of the composite numbers and all of the prime numbers?
It is impossible to list the infinite number of prime numbers and composite numbers.
Trending Questions
What is 0.2 divided by 1.06?
What is 25.615 rounded to the nearest tenth?
What multiplies to be -102 and adds to be -1?
How is 9 percent of 13 is 69.23?
What word means almost the same as dispute?
What is minutes and second?
What is one hundred billion divided by 2?
Are 211 and 6321 proportional?
What kind of number is 1.76?
What is 79 over 150 as a decimal?
What kind of reflection is the reflection of light from a rough surface?
What is 55.64 to the nearest whole number?
What terms apply to the pentagon shown?
How many different rectangles can you draw with an area of 28?
What is the surface area of a cylinder that the radius is 6 and the height is 7?
What is the area of a circle with the diameter is 21?
What is the length and width of a rectangle whose area is 54?
Which pr tasks ends when the individual is returned to duty?
Is it in the Bible that when you kill yourself you are going to hell?
Is 3 over 32 equal to 0.125?
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.