Joke Collection Website - Mood Talk - How many prime numbers are there from 1 to 15? What about the sum? By the way, let’s talk about the meaning of prime numbers and appropriateness. !
How many prime numbers are there from 1 to 15? What about the sum? By the way, let’s talk about the meaning of prime numbers and appropriateness. !
Among 1 ~ 15, the prime numbers are 2, 3, 5, 7, 11, 13.
The composite numbers are 4, 6, 8, 9, 10, 12, 14, 15.
A prime number is a number with only two factors: 1 and itself.
A composite number is a number that has other factors besides 1 and itself.
If it is helpful to you, please adopt it. Thanks.
This is the first answer. Wish you progress! ! !
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