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These are the prime numbers as, by definition, a Prime number is only divisible by itself and 1. A prime number thus has only two factors.

2, 3 ,5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, and 97.

Q: What 25 numbers under 100 has only 2 factors?

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it's probably 60 that has 12 factors

They are the numbers that have more than two factors whereas prime numbers have only two factors

They are all the prime numbers from 2 to 97 that have only two factors

In that range, only 100 has exactly 9 factors.

30, 42, 66, 70 and 78.

Related questions

16 and 81 are the only two.

They are the numbers that have two or more factors whereas prime numbers have only two factors.

it's probably 60 that has 12 factors

The only common factor of these numbers is 1.

They are the numbers that have more than two factors whereas prime numbers have only two factors

There are five numbers in that range with 12 factors, but none with exactly eleven.

Only 1.

There are no prime numbers anywhere that are divisible by 2 and 7.

60, 72, 84, 90 and 96

All of the numbers from 1 to 100 are the factors in the set of numbers from 2 to 100.

They are all the prime numbers from 2 to 97 that have only two factors

All composite numbers have more than 2 factors but prime numbers have only 2 factors