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The prime factors of 30 are 2, 3 and 5. The prime factors of 40 are 2 and 5. The prime numbers between 30 and 40 are 31 and 37.
There are 10 prime numbers between 1 and 30. They are 2, 3, 5, 7, 11, 13, 17, 19, 23, and 29 Odd numbers between 1 and 30 that are not prime numbers are 9, 15, 21, 25, and 27 1 is also not a prime number, as 1 can multiply itself infinity times (1∞=1)
The numbers 2, 3, 5, 7, 11, 13, 17, 19, 23 and 29 are prime.
The numbers 2, 3, 5, 7, 11, 13, 17, 19, 23 and 29 are prime (including the boundaries).
The product of the first three prime numbers (2, 3, and 5) is 30.