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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.
Wiki User
∙ 9y ago
Wiki User
∙ 11y ago2 and 5 are the only prime numbers that end in 2 or 5.
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Why are 5 and 2 the only prime numbers that end in a 5 or a 2?
All numbers larger than 5 which end in 5 are divisible by 5 and so are not prime. All numbers larger than 2 which end in 2 are divisible by 2 and so are not prime.
What number's cant a prime number end in why?
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.
What prime numbers end a 2 OR 5?
Just 2 and 5
What are the prime numbers if 100?
The prime numbers of 100 are: 2, 2, 5 and 5
How can you tell that 32 and 95 are not prime numbers?
32 is not a prime because 2 is a factor of all even numbers. 95 is not a prime because all numbers greater than 5 that end in a 5 or 0 are composite numbers.
Why are 5 and 2 the only prime numbers that end in a 5 or a 2?
All numbers larger than 5 which end in 5 are divisible by 5 and so are not prime. All numbers larger than 2 which end in 2 are divisible by 2 and so are not prime.
2 prime numbers are the only prime numbers that end with 2 and 5?
Two and five!
What number's cant a prime number end in why?
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.
What are the only prime numbers that end in 2 and 5?
2 and 5
What prime numbers end a 2 OR 5?
Just 2 and 5
Which are the only prime numbers that end with 2 or 5?
2 and 5 are the only prime numbers that ends with 2 or 5.
What is the only prime numbers that end with 2 and 5?
There are two: 2 and 5.
What are the prime numbers if 100?
The prime numbers of 100 are: 2, 2, 5 and 5
What prime numbers end with a 2 or a 5?
The only prime number ending in a 2 or 5 is the number two itself. All others are composite.
How many prime numbers are there that end with 2 or 5?
2 and 5 are the only ones, so one each.
Is 45 prime or composye?
All numbers that end with 5 are divisible by 5.All numbers that end with 5 are divisible by 5.All numbers that end with 5 are divisible by 5.All numbers that end with 5 are divisible by 5.
Are the numbers 2 3 5 9 prime numbers?
2, 3, 5 are prime numbers but 9 is not a prime number
