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they are 120 because there is 10 prime numbers in each month 1,3,5,7,11,13,17,19,23,29 and 12 months

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Q: How many prime days are in a year?

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September has 19 days that are prime numbers Note: 1 is not prime or composite

September has 19 days that are prime numbers Note: 1 is not prime or composite

There are 7 days in a week and the number 7 is prime.

September has thirty days. Of the numbers 1-30, the following are prime: 2,3,5,7,11,13,17,19,23,29. The others are composite, except 1 which is neither! So, 10 primes, 19 composites, and 1

we have 7 days in a week. 7 is a prime number. there are 31 days in some months.31 is a prime number

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There are 52 prime days in a non leap year. In leap year there would be 53 days. A prime year will never fall on a leap year because leap years are divisible by 4.

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September has 19 days that are prime numbers Note: 1 is not prime or composite

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September has 19 days that are prime numbers Note: 1 is not prime or composite

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