1, 3, 7, 9, 21, 27, 43, 63, 129, 189, 301, 387, 903, 1161, 2709, 8127.
A prime number is a number with two and only two factors: 1 (also known as unity) and itself. 8127 has factors other than 1 and itself, so it is not a prime number. For example, it is divisible by 3. (You can check this by adding the digits of the number: 8 + 1 + 2 + 7 = 18. If the sum of the digits is divisible by 3, the number is also divisible by 3.) Therefore, 8127 is a composite number.
Yes; all numbers that are divisible by 9 are divisible by 3.
Yes, 72 is divisible by 9. It is not divisible by 8 or 6.
Yes, 682 is not divisible by 9.
1, 3, 7, 9, 21, 27, 43, 63, 129, 189, 301, 387, 903, 1161, 2709, 8127.
A prime number is a number with two and only two factors: 1 (also known as unity) and itself. 8127 has factors other than 1 and itself, so it is not a prime number. For example, it is divisible by 3. (You can check this by adding the digits of the number: 8 + 1 + 2 + 7 = 18. If the sum of the digits is divisible by 3, the number is also divisible by 3.) Therefore, 8127 is a composite number.
Yes; all numbers that are divisible by 9 are divisible by 3.
Yes, 72 is divisible by 9. It is not divisible by 8 or 6.
Yes, 682 is not divisible by 9.
Yes, 5553 is divisible by 9.
9 and 9018 and 8127 and 7236 and 6345 and 54
To determine if 126 is divisible by 9, we need to check if the sum of its digits is divisible by 9. In this case, 1 + 2 + 6 = 9, which is divisible by 9. Therefore, 126 is divisible by 9.
Yes, every number that's divisible by 9 is divisible by 3
Yes, any number divisible by 9 is also divisible by 3.
Yes, 441 is divisible by 9. To determine if a number is divisible by 9, you can add up its digits. In this case, 4 + 4 + 1 = 9, which is divisible by 9. Therefore, 441 is divisible by 9.
==yes. 90 is divisible by 3 and 9==