The division shows that the number 77 is exactly divisible by 1, 7, 11, and 77.

Solution: The factors of 379 are 1, 379 and factors of 214 are 1, 2, 107, 214.

For 457, the answer is: yes, 457 is a prime number because it has only two distinct divisors: 1 and itself (457). As a consequence, 457 is only a multiple of 1 and 457.

A number is divisible by 5 if the number’s last digit is either 0 or 5. Divisibility by 5 – examples: The numbers 105, 275, 315, 420, 945, 760 can be divided by 5 evenly.

Divisibility rules for numbers 1–30

We know that if the sum of the numbers that make up 87 is divisible by 3, then 87 is divisible by 3. Note: If you divide 87 by 3, you get 29 which is a whole number.

Consider the numbers 2, 23, 234, 2345, 23456, 234567. We observe that among these 6 numbers, only 234 and 234567 are divisible by 3. Here, we cannot think of the number formed by the last 2 digits or for those matter even three digits.

Every number is divisible by 1 If a number ends in 0, 2, 4, 6, or 8 (even), the number is divisible by 2. If the sum of a number’s digits is a multiple of 3, the number is divisible by 3. For example, 324 is divisible by 4 because 4 divides 24, and 1500 is divisible by 4 because the last two digits are 0’s.

The numbers that 23 is divisible by are 1 and 23. You may also be interested to know that all the numbers that 23 is divisible by are also known as the factors of 23. Not only that, but all the numbers that are divisible by 23 are the divisors of 23.

Note: Zero is divisible by any number (except by itself), so gets a “yes” to all these tests.

For 17, the answer is: yes, 17 is a prime number because it has only two distinct divisors: 1 and itself (17). As a consequence, 17 is only a multiple of 1 and 17.

The number 17 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 17 has exactly two factors, i.e. 1 and 17, it is a prime number.

The numbers that 37 is divisible by are 1 and 37. You may also be interested to know that all the numbers that 37 is divisible by are also known as the factors of 37. Not only that, but all the numbers that are divisible by 37 are the divisors of 37.

The division shows that the number 91 is exactly divisible by 1, 7, 13, and 91.

91 is a Prime or Composite Number As we can see why is 91 not a prime number it is because it has more than two factors other than 1 and the number itself. It contradicts the definition of prime numbers. So 91 is a composite number because composite numbers have factors more than 2.

The factors of 26 are one, two, 13 and 26. Since 26 is an even number, which means that it ends in zero, two, four, six or eight, it’s evenly divisible by two.

Since 97 cannot be divided evenly by 2, 3, 5, or 7, we know that 97 is a prime number.

The factors of 97 are 1, 97.