66>> 6+6=12
66
11 + 12 + 9 = 32
147 has factors other than 1 and itself, so it is not a prime number. For example, 147 is divisible by 3. (You can quickly check this by adding up the digits of 147: 1 + 4 + 7 = 12. If the sum of the digits is divisible by 3, so is the number.) Therefore, 147 is a composite number.
12 is a composite number itself.
It is a composite number.
66
35 is a composite number between 30 and 40 whose primev factors (5 and 7) have a sum of 12.
12 is a composite number - one of 14 such numbers - between 1 and 25.
12 and 16
11 + 12 + 9 = 32
Which of the following is a composite number between 57,47,17,2
How about 12?
147 has factors other than 1 and itself, so it is not a prime number. For example, 147 is divisible by 3. (You can quickly check this by adding up the digits of 147: 1 + 4 + 7 = 12. If the sum of the digits is divisible by 3, so is the number.) Therefore, 147 is a composite number.
12 is a composite number itself.
Composite factors of 24 are 4, 6, 8, 12 and 24. Sum of composite factors = 4+6+8+12+24 = 54.
It is a composite number.
57