13
9
The answer is 9. It is a multiple of 3. 3+3+3=9. It is less than 20: 20-9=11.It is not a prime number. It is odd, and it is not a factor of 30. 30/9=3.3333333333
1
2 and 7 are prime numbers less than 10 that are factors of 42 and 70.
The prime factor of 7 is 7. The prime factor of 8 is 2. The prime factor of 9 is 3. The prime factors of 10 are 2 and 5. The prime factor of 11 is 11.
210
no, factors of a number would be less than that of the original number. A prime number is a number that has factors of only itself and 1.
3
The answer is 105 because 3,5, and 7 are all prime factors and when you multiply the numbers together it comes out to be 10
2,3,5,7.2*3*5*7=210
87 is the only 2-digit number that is 6 greater and 13 less than a square, but it is not prime.
Well, darling, the number you're looking for is 15. It's less than 20, odd, and can be broken down into the prime factors 3 and 5. So, there you have it, a prime factor party with the number 15 strutting its stuff.