The prime factors of 75 are 3 and 5. A prime factor is any factor of a number that is also a prime number. A prime number is a designation for numbers that only have two factors: 1 and themselves.
Continue ReadingThe first step in identifying prime factors of a number is to determine all the factors of that number. To do so, divide the number by all the numbers leading up to it. Record all numbers where there is no remainder after the division. For 75, the factors are 1, 3, 5, 15, 25 and 75. Of those numbers, the only prime numbers are 3 and 5.
Learn more about NumbersThe factors of the number 91 are 1, 7, 13 and 91. The factors of a number are obtained by dividing that number by other numbers. If a number is less than or equal to 91 and divides 91 exactly without leaving a remainder, it is a factor of 91.
Full Answer >The number 69 is not a prime number, as it has the factors of 3 and 23. A prime number is one which is only evenly divisible by itself and the number 1.
Full Answer >The factors of 16 are 1, 2, 4, 8 and 16. The number 16 has the uncommon trait of having an odd number of factors because it's a square number.
Full Answer >The factors of the number 8 are 1, 2, 4 and 8. Since the number is divisible by more than 1 and itself, it is not a prime number.
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