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Q: Is number 1a prime number

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1 is not considered to be a prime or composite number because it has only one factor which is itself.

prime

No, it is not a prime number.

Prime number next to any prime number is called consecutive prime number. Eg:- 2,3,5,7 are prime numbers

21 is a composite number, not a prime, having prime factors 3x7.

Related questions

No

because it is 1

1 is not considered to be a prime or composite number because it has only one factor which is itself.

All numbers are divisible by themselves and one, BUT a number divisible ONLY by itself and one is called a prime number.prime numbers can only be divided by themselfs and 1a prime number

1A

a factor is a factor , a prime number is a prime number, but a prime factor is a factor which is a prime number. it has to depend on what number number. exp 13 is a prime number

You is called a prime number!You is called a prime number!You is called a prime number!You is called a prime number!

4 Ton

This is the alkali metals family.

A prime number times a prime number is a composite number. Since prime numbers, except for 2, are odd numbers, a prime number times a prime number is usually an odd number. It will only be an even number if one of the prime numbers is 2. A prime number times a prime number will be a number with four factors unless both prime numbers are the same, in which case it will be a square number with only three factors.

No.

180 is not a prime number.

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