Is 105 a prime number?
No, 105 is not a prime number. The number 105 is divisible by 1, 3, 5, 7, 15, 21, 35, 105. Since 105 has more than two factors, i.e. 1, 3, 5, 7, 15, 21, 35, 105, it is not a prime number.
What are the numbers divisible by 103?
The number 103 is divisible only by 1 and the number itself. For a number to be classified as a prime number, it should have exactly two factors. Since 103 has exactly two factors, i.e. 1 and 103, it is a prime number.
What number is divisible by 126?
The number 126 is divisible by 1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126.
What is the divisibility of 30?
Divisibility rules for numbers 1–30
| Divisor | Divisibility condition |
|---|---|
| 28 | It is divisible by 4 and by 7. |
| 29 | Add three times the last digit to the rest. |
| Add 9 times the last two digits to the rest. | |
| 30 | It is divisible by 3 and by 10. |