28.
36,201 is not a prime number because 3 is one of its factors. 3 is one of the factors of any number whose digits add up to 3 or a multiple of 3. The only prime number with 3 as one of its factors is the number 3.
A prime number is a whole number that has two factors which are itself and one. where as, A composite number has factors in addition to one and itself.
1617 is not a prime number. The sum of its digits is a multiple of 3, so 3 is one of its factors. A prime number has exactly two factors, 1 and the number itself, so 1617 is a composite number.
It is a multiple of 500.
No.3 is less than 5, thus cannot be a multiple of it; 3 is prime, therefore cannot be a multiple of any number besides 3 (which is one of its factors); by definition, 3 is ismply not a multiple of any number but 1 and 3.
When you are finding common factors, one method is to list the factors.
The proper factors are the regular factors without one and the number itself.
98
Proper factors do not include one and the number itself.
A multiple is a result of multiplying one factor by another: 2 x 3 = 6 3 x 3 = 9 4 x 3 = 12 6, 9, and 12 are all multiples of 3 3 and 2 are factors of 6 3 and 3 are factors of 9 4 and 3 are factors of 12
Every one of them has an even number of factors.
52 has 6 factors.
56
13 is a prime number. 13, like every other prime number, has only two factors. The factors of 13 are 1 and 13. Any multiple of any number greater than one would have at least three factors: 1, the number, and the number it is a multiple of.
16
16
A number that has only 2 factors is a prime number whose factors are itself and one and the 1st five prime numbers are: 2 3 5 7 and 11