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Earn +20 ptsQ: Why is 2 a prime number but 12 is not?
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What is the prime number for 12?
The prime factorization of 12 is 2 x 2 x 3. So, the prime numbers for 12 are 2 and 3.
What is the prime or composite number for 12?
As a product of its prime factors: 2*2*3 = 12
What is the smallest positive prime number of 12?
2 is the smallest prime factor of 12.
What prime number is a factor of 12 and 27?
The prime factors of 12 are 2 and 3. The only prime factor of 27 is 3. The prime number that both 12 and 27 have as a factor is 3.
What two digit number do you subtract and get an even prime number?
The only even prime number is 2. 12-10=2, 13-11=2, 14-12=2,...99-97=2.
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