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Is 1 really a prime number?

Updated: 8/18/2019
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Wiki User

13y ago

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1 is not a Prime number. It is neither prime nor composite. It is known as unity. A prime number is a number with exactly two factors: 1 and itself. Since 1 has only one factor, it is not a prime number.

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Wiki User

14y ago
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Hayley Nguyen

Lvl 2
2y ago

No because 1024 can be divided by other number than just itself and 1

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Albert Roberts

Lvl 1
2y ago
can you explain the answer

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Wiki User

13y ago

Actually, 1 is NOT a prime number because a prime number has only two factors (one and itself) and 1 has only one factor-1.

One is nether prime nor composite.

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Wiki User

12y ago

o its the same thing as 1 just -

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Anonymous

Lvl 1
3y ago
Not really. Prime numbers have exactly two divisors, 1 and themselves. 1 only has one divisor. -1 has two, 1 and itself.
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Anonymous

Lvl 1
3y ago
It's not a prime though, since units are not considered primes.

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Wiki User

13y ago

no

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Wiki User

9y ago

No.

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Q: Is 1 really a prime number?
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Related questions

Can a number over 100 only have 1 in its prime factorization?

1 is not a prime number, so it wouldn't be present in any prime factorization. Prime numbers don't really have factorizations, that is, the factorization is the number itself. There are prime numbers greater than 100.


is the number 1 a prime number?

no 1 is not a prime number


Can a number greater than 100 have only 1 number in its prime fatorization?

No. Prime numbers (of any size) have only one prime factor, but that's not really a factorization.


Is 1 the lowest prime number?

No; 1 is not a prime number. The lowest prime number is 2.


Is 1 a prime or prime?

No 1 is neither a prime number or a composite number


What numbers is prime number?

A prime number is a number that is only divisible by itself and 1. 1 is NOT a prime number.


Can 1 be a prime factor of a number?

No - as 1 is not a prime number.


Can 1 be a prime number?

no it can not be a prime number as a prime number has has to have 2 factors in it and 1 only has 1 factor itself


Is 3 and 1 prime?

If your question was really "Are 3 and 1 mutually prime?" The answer is no as by definition nothing can be mutually prime with 1 (which also by definition is not a prime number). The first prime number is 2. The second is 3. The third is 5. The fourth is 7. The fifth is 11. etc. However numbers can be "mutually prime" even when the numbers themselves are not prime numbers. For example 12 and 6 are neither mutually prime nor prime numbers, but 15 and 4 are mutually prime but neither is a prime number.


Why 0 and 1 are not a prime number?

0 and 1 is not prime number because the prime number can only be divided by the number 1 and itself.


Are 1 and 2 prime numbers?

2 is a prime number. 1 is not a prime number


Is 1 a prime number or not?

1 is not a prime number. By definition, a prime number has exactly two distinct divisors: 1 and itself. Thus, 1 cannot be a prime.