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Can you multiply with the sane number of factors but not use same factors as in problem number 4?
In this cant
Can a prime number have 4 factors?
No, a prime number has exactly two factors: 1 and itself.
What are the factors of 4 between the numbers of 30 and 50?
The factors of a number cannot be greater than the number itself. So there are no factors of 4 between 30 and 50.
What is a number less than 20 and has 3 factors?
4 and 9. Factors of numbers come in pairs which means that every number ought to have an even number of factors. To have an odd number of factors, one factor pair must be a repeated number which means that only square numbers have an odd number of factors. The square numbers less than 20 are 1, 4, 9 & 16 and of these 4 & 9 have 3 factors: 4: 1, 2 & 4 9: 1, 3 & 9
Is 3 and 4 prime or composite?
Three is prime, because the number 3 only has 2 factors 1 and itself and the number 4 has 3 factors 1,2, and 4 (you can tell if a number is prime when it has 2 factors and if a number has more than 2 it is composite)
