Which number is not divisible by?
Which number is not divisible by?
For example, 54 and 2,870 are divisible by 2, but 2,221 is not divisible by 2. A number is divisible by 4 if its last two digits are divisible by 4. For example, 780, 52, and 80,744 are divisible by 4, but 7,850 is not divisible by 4.
What is the smallest composite number that is divisible by none of the primes 2 3 5 and 7?
299
What is the smallest composite number that is not divisible by 2 3 or 5?
Explanation: The first 3 prime numbers are {2, 3, 5}. The smallest composite integer not divisible by either 2, 3, or 5 is 49.
Is every composite number divisible by 2?
One proof: Because 2 is a divisor of every even number, every even number larger than 2 has at least three distinct positive divisors. So, because all the other even numbers are divisible by themselves, by 1, and by 2, they are all composite (just as all the positive multiples of 3, except 3, itself, are composite).
What are two factors of 17?
As 17 is a prime number, it has only two factors, such as 1 and the number itself. Hence, the factors of 17 are 1 and 17. Factors of 17: 1 and 17. Prime Factorization of 17: 17 or 171.
What are the factors 11?
FAQs on Factors of 11 The factors of 11 are 1, 11 and its negative factors are -1, -11.
What are the factors of 19?
Since 19 is a prime number, it has only two factors, 1 and 19.
Which is a list of the factors of 21?
The factors of 21 are 1, 3, 7 and 21.
What is divisible by 19?
To determine if a number is divisible by 19, take the last digit and multiply it by 2. Then add that to the rest of the number. If the result is divisible by 19, then the number is divisible by 19. For example, 475 is divisible by 19 because 47 + (5 x 2) = 57, and 57 is divisible by 19.
What is the factor of 3 and 75?
The Greatest Common Factor (GCF) for 3 and 75, notation CGF(3,75), is 3. Explanation: The factors of 3 are 1,3; The factors of 75 are 1,3,5,15,25,75.
What is the greatest factor of 75?
The factors of 75 are 1, 3, 5, 15, 25 and 75. Thus, the common factor of 75 and 73 is 1.
What numbers multiplied equal 75?
75 = 1 x 75, 3 x 25, or 5 x 15. Factors of 75: 1, 3, 5, 15, 25, 75.
What are all the factors of 100?
Hence, we have obtained all the factors of 100. They are 1,2,4,5,10,20,25,50 and 100. Using these rules and the prime factorizations, we can find out all the factors of 100. Let us see this using an example.
What is the factor of 1 to 100?
Table of factors from 1 to 100
| Number | Factors | Prime or Composite |
|---|---|---|
| 97 | 1, 97 | Prime |
| 98 | 1, 2, 7, 14, 49, 98 | Composite |
| 99 | 1, 3, 9, 11, 33, 99 | Composite |
| 100 | 1, 2, 4, 5, 10, 20, 25, 50, 100 | Composite |
What are the common factors of 50 75 and 100?
- Step by Step Solution. Calculate Greatest Common Factor for : 100, 50 and 75. Factorize of the above numbers : 100 = 22 • 52 50 = 2 • 52 75 = 3 • 52
- Why learn this.
- Terms and topics. GCF calculator.
- Related links. Greatest common factor (GCF) explained | Arithmetic (video) | Khan Academy. LCM on Purplemath.
What is the greatest factor of 75 and 100?
The greatest common divisor or the greatest common divisor of two or more numbers is the largest possible number which exactly divides the given numbers.
- Answer: The GCF of 75 and 100 is 25.
- Explanation:
- Methods to find GCF of 75 and 100.
- Find GCF of 75 and 100 by Prime Factorization.
What is the GCF of 27 and 72?
9
What is the GCF of 27 and 36?