Q: What is the first decade with only 4 prime numbers?

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They are the first 2000 numbers that have only 2 factors which are themselves and one

Prime numbers can not composite as - Prime number has only 2 factors whereas composite have more than 2

Numbers with only two factors, the number itself and one, are called prime numbers. Examples of prime numbers are 2 (which is the only even prime number) and 17.

Rules for prime numbers: Must be a whole number (integer) Greater than 1 2 is the only even prime number Can only be divided by 1 or itself gives: 2,3,5,7,11,13,17,19

Prime numbers are those numbers which are only divisible by itself Likewise, 1,3,5,7,11,13,17,19,23,,29,31,37,41,43,47,51,53,57,59. These are the only prime numbers upto 60.

Related questions

The 1870s. 1871, 1873, 1877, and 1879 are all prime numbers.

49 of them. ' 2 ' is the only even prime number.

They are the first 2000 numbers that have only 2 factors which are themselves and one

There is only 1 even prime number which is 2

Two is the ONLY even prime number.

No

A prime number has only two factors which are itself and one. The first 10 prime numbers are: 2 3 5 7 11 13 17 19 23 and 29 2 is the only even prime number

They are the first 26 numbers, starting with 2, such that their only factors are 1 and the numbers themselves.

Prime numbers.

Prime numbers can not composite as - Prime number has only 2 factors whereas composite have more than 2

2, 3, 5, and 7.Prime numbers obey the simple rule: Prime numbers can only be divided by 1 and themselves. Which means that they only have two factors.1 is also sometimes considered a prime number, but it is not. It has only one factor, so disobeys the rule.

Rules for prime numbers: Must be a whole number (integer) Greater than 1 2 is the only even prime number Can only be divided by 1 or itself gives: 2,3,5,7,11,13,17,19