0

# What number's cant a prime number end in why?

Updated: 12/16/2022

Wiki User

9y ago

Other than 2, no prime numbers are even. So prime numbers can't end in even numbers. After 5, no Prime number can end in 5.

After 5, all prime numbers end in 1, 3, 7 or 9.

Wiki User

9y ago

Earn +20 pts
Q: What number's cant a prime number end in why?
Submit
Still have questions?
Related questions

### Why can a prime number not have 0 in it?

Lots of prime numbers have zeros in them. 101, 103, 107 and 109 are all prime numbers. Prime numbers can't end in zero. Numbers that end in zero are multiples of ten and have too many factors to be prime numbers.

### Is 130 a prime number?

No prime numbers end in 0. 130 is a composite.

### What is an odd prime number?

Odd numbers end in 1, 3, 5, 7 or 9. Prime numbers have only two factors. 47 is an odd prime number.

### What is the number 114 a prime or composite number?

Well, it's definitely not prime because it's an even number, and all even numbers are divisible by two.(FYI, even numbers are numbers that end in 0,2,4,6, or 8. Odd numbers are numbers that end in 1,3,5,7,or 9)So if it ends in a 4 (which is prime) then it's composite.

### How many prime numbers in 300?

5To get the number of prime numbers in a number, divide by the lowest prime number that divides exactly, then keep going until you end up with a prime number. 300 - 2150 - 275 - 325 -55

### How many prime numbers end in 2?

Two is the only prime number that ends in "2"

### What 2 prime numbers add to make 1.32?

When you add two or more prime numbers you will only end up with a whole number and not a decimal number.

### What prime numbers end in a 2 or 5?

5 and 2 are the only prime numbers that end in a 5 or 2. A prime number is by definition only divisible by 1 and itself, and all other whole numbers ending in 5 or 2 are divisible by 5 or 2, respectively. Numbers that are not whole numbers cannot be prime.

### Do prime numbers end in 4?

No because if a number ends with for it is not prime. it is divisible by, but not limited to, 1,2 and 4

### What are all prime number?

There are an infinite amount of prime numbers, as numbers never end. Prime numbers are numbers that are only divisible by 1 and itself. For example, 2, 3, 5, 53, and 97 are prime numbers.

### Which are the only prime numbers that end with 2?

The number 2 is the only one.

### If 7 is the last number in a prime factorization does it end?

Yes. Since 7 is a prime number, you have found all the prime numbers, with 7 being the final prime factor.