What number has exactly 5 factors?
Explanation: The only two numbers in the range (1, 100) having exactly 5 prime factors are 16 and 81.
What are the factors of 1 and 20?
Table of Factors and Multiples
| Factors | Multiples | |
|---|---|---|
| 1, 2, 3, 6, 9, 18 | 18 | 126 |
| 1, 19 | 19 | 133 |
| 1, 2, 4, 5, 10, 20 | 20 | 140 |
| 1, 3, 7, 21 | 21 | 147 |
What are the factors to 20?
Factors of 20: 1, 2, 4, 5, 10 and 20.
What is the smallest number with 2 3 4 5 6 as factors?
The value of LCM of 2, 3, 4, 5, and 6 is the smallest common multiple of 2, 3, 4, 5, and 6. The number satisfying the given condition is 60. ∴LCM(2, 3, 4, 5, 6) = 60. Example 2: Find the smallest number that is divisible by 2, 3, 4, 5, and 6 exactly.
Which is the smallest number that has 5 factors?
16, 81, 625, 2401, 14641… 16 is the smallest number with exactly 5 divisors. 12 is the smallest number with at least 5 proper divisors. 2310 is the smallest number with five distinct prime factors.
What is a composite number with 5 factors?
2 is prime. Example 2: Is the number 9 prime or composite? Solution: The factors of 9 are 1 x 9, 3 x 3. 9 is composite….Definitions.
| factors of 2: | 1 x 2 | 2 is prime |
|---|---|---|
| factors of 4: | 1 x 4, 2 x 2 | 4 is composite |
| factors of 5: | 1 x 5 | 5 is prime |
| factors of 6: | 1 x 6, 2 x 3 | 6 is composite |
| factors of 7: | 1 x 7 | 7 is prime |
What’s the multiples of 5?
The multiples of 5 include 5, 10, 15, 20, 25, 30, 35, 40,…. The multiples of 10 include 10, 20, 30, 40, 50, 60,…. Thus, the common multiples of 5 and 10 are 10, 20, 30, 40,…. That means all the multiples of 10 will be the common multiples for 5 and 10.
What is the LCM of 1 and 20?
20 The LCM of 1 and 20 is 20.
What are the first 5 multiples of 20?
The first 10 multiples of 20 are 20, 40, 60, 80, 100, 120, 140, 160, 180, and 200.
How do you factor numbers?
How to Find Factors of a Number?
- Find all the numbers less than or equal to the given number.
- Divide the given number by each of the numbers.
- The divisors that give the remainder to be 0 are the factors of the number.
What is the least number with 2 3 4 and 5 as factors?
60 The value of LCM of 2, 3, 4, and 5 is the smallest common multiple of 2, 3, 4, and 5. The number satisfying the given condition is 60. ∴LCM(2, 3, 4, 5) = 60. Example 3: Find the smallest number that is divisible by 2, 3, 4, 5 exactly.
Which is the smallest number whose factors are 3/5 and 7?
So, the product of these four numbers will give us the required smallest number. Because the product of factors of numbers will give the number itself. So, required number will be (2) * (3) * (5) * (7) = 210.
Is the smallest number that has 5 factors How many factors does n 1 have?
1 Answer. A number that has 5 factors has to be of the form x^4 where 'x' is a prime number. Therefore, N − 1 = 15.
What is the smallest two digit number with exactly 5 unique factors?
The smallest number is 256, with factors 1, 2, 4, 8, 16, 32, 64, 128, 256. The smallest is 36 with factors 1, 2, 3, 4, 6, 9, 12, 18, 36. So the answer is 36. If you want proper factors (excluding the number itself) the answer is 48, and I gave you the formula to calculate this.
What are the first 20 composite numbers?
4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27, 28, 30, 32, 33, 34, 35, 36, 38, 39, 40, 42, 44, 45, 46, 48, 49, 50, 51, 52, 54, 55, 56, 57, 58, 60, 62, 63, 64, 65, 66, 68, 69, 70, 72, 74, 75, 76, 77, 78, 80, 81,82, 84, 85, 86, 87, 88, 90, 91, 92, 93, 94, 95, 96, 98, 99, 100.
Is 5 a composite number?
Is 5 a Composite Number? No, since 5 has only two factors, i.e. 1 and 5. In other words, 5 is not a composite number because 5 doesn't have more than 2 factors.
What are the multiples of 20?
The first 10 multiples of 20 are 20, 40, 60, 80, 100, 120, 140, 160, 180, and 200.
What are the multiples of 5 between 20 and 50?
5, 10, 15, 20, 25, ….., 50, 55, 60,….., 120, 125,….. All numbers which can be divided or are a product of 5 are multiples of 5. Although the factors of 5 are the numbers that, when multiplied together, gives the original number.
What is the LCM of 1 to 10?
2520 Answer: LCM of 1 to 10 is 2520.
What is the LCM of 2 and 1?
2 LCM of 1 and 2 is 2. If you observe the common multiples of 1 and 2, there are 2, 4, 6, 8 and so on. Out of these common multiples, 2 is the least number or the smallest number that is common.
How many factors do 20 have?
The factors of 20 are 1, 2, 4, 5, and 20.
What is the 20th multiple of 5?
Chart of Multiples of 5 up to 20 times
| Multiplication of 5 with numbers | Multiples of 5 |
|---|---|
| 5 × 17 | 85 |
| 5 × 18 | 90 |
| 5 × 19 | 95 |
| 5 × 20 | 100 |
How many prime numbers are there between 1 and 20?
8 prime numbers There are 8 prime numbers under 20: 2, 3, 5, 7, 11, 13, 17 and 19. The first 10 prime numbers are 2, 3, 5, 7, 11, 13, 17, 19, 23, 29.
Which of these are not a factor of 20?
The factors of 20 are 1, 2, 4, 5, 10, 20 and its negative factors are -1, -2, -4, -5, -10, -20.
What is the LCM of 12345?
The LCM of 2, 3, 4, and 5 is the product of all prime numbers on the left, i.e. LCM(2, 3, 4, 5) by division method = 2 × 2 × 3 × 5 = 60.
What is the smallest number with 5 prime factors?
The number which has the five smallest prime numbers as factors will be the product of the first five prime numbers. Thus, the smallest composite number that has the five smallest prime numbers as factors is 2310.
What is the smallest 5 digit number and express it in the form of its prime factors?
Summary: The smallest 5-digit number is ten thousand represented as 10,000 and its prime factorization is 2 × 2 × 2 × 2 × 5 × 5 × 5 × 5.
What’s the smallest number with 5 factors?
Answer: 16, 81, 625, 2401, 14641… 16 is the smallest number with exactly 5 divisors.
What is the lowest number with 5 factors?
Answer: The smallest composite number that has the five smallest prime numbers as factors is 2310.
What is the composite number between 1 and 20?
The composite numbers from 1 to 20 are: 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, and 20.