Quick Answer: What Is The Smallest Number With 18 Factors?

What is the smallest number with 3 prime factors?

30Answer: 30 is the smallest number that has three different prime factors..

What are 2 factors of 18?

18 Up on the Housetop 18 is a composite number. 18 = 1 x 18, 2 x 9, or 3 x 6. Factors of 18: 1, 2, 3, 6, 9, 18. Prime factorization: 18 = 2 x 3 x 3, which can also be written 18 = 2 x 3².

Which number has 4 as a factor?

NumberComposite, Prime, or Neither?Explanation3Prime3 has only the factors 3 and 1.4Composite4 has more than two factors: 1, 2, and 4, so it is composite.5, 7,11,13PrimeEach number has only two factors: 1 and itself.6, 8, 9,10, 50, 63CompositeEach number has more than two factors.2 more rows

What is the smallest number with 16 factors?

120The smallest positive integer with 16 divisors is 120.

What is the smallest number with 20 factors?

240240 is the smallest integer with exactly 20 positive divisors.

What kind of number will have 15 factors?

For instance, factors of 15 are 3 and 5, because 3×5 = 15. Some numbers have more than one factorization (more than one way of being factored). For instance, 12 can be factored as 1×12, 2×6, or 3×4. A number that can only be factored as 1 times itself is called “prime”.

What are factors of 4?

4 = 1 x 4 or 2 x 2. Factors of 4: 1, 2, 4. Prime factorization: 4 = 2 x 2, which can also be written 4 = 2². Since √4 = 2, a whole number, 4 is a perfect square.

What is a number between 1 and 20 with 5 factors?

The factors are 1, 2, 4, 8, 16. All other numbers within the range have less or more than five factors. The answer is 16.

What is the smallest factor of 18?

I write the factors in order from smallest to greatest, so the factors of 18 are: 1, 2, 3, 6, 9, and 18.

What is the smallest number with exactly 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 the smallest number with 100 factors?

Sanika found the smallest number with exactly 100 factors: Prime factorising 100 gives us 2\times2\times5\times5, now we can assign the smallest prime bases to the largest powers, which will give us 24$\times34\times5\times7 = 45360.

What is the smallest number with 7 factors?

6464 is the smallest. It has these 7 factors: 1,2,4,8,16,32, and 64. 12 has 6 factors (1,2,3,4,6 and 12) and 24 has 8 factors (1,2,3,4,6,8,12 and 24) but you have to go all the way to 64 to get exactly 7 factors.

Which number less than 1000 has the most factors?

512, out of all then numbers between 1 and 1000, has the most (9 total) numbers in its prime factorization. However, since the only numbers in the prime factorization in 2, it only has 11 factors, including 1 and itself. Now, take . That product is 2310, which is above 1000.

What is the prime factorization of 18?

18 is a composite number. 18 = 1 x 18, 2 x 9, or 3 x 6. Factors of 18: 1, 2, 3, 6, 9, 18. Prime factorization: 18 = 2 x 3 x 3, which can also be written 18 = 2 x 3².

How many factors does 20 have?

-1, -2, -4, -5, -10, and -20. How many Factors of 20? When we counted the Factors of 20 that we listed above, we found that 20 has 6 Positive Factors and 6 Negative Factors. Thus, the total number of Factors of 20 is 12.

What is the least common multiple of 4 6 and 10?

The LCM of 10,4,6 10 , 4 , 6 is 2⋅2⋅3⋅5=60 2 ⋅ 2 ⋅ 3 ⋅ 5 = 60 .

What are the six factors of 18?

The square root of 18 is 4.2426, rounded down to the closest whole number is 4. Testing the integer values 1 through 4 for division into 18 with a 0 remainder we get these factor pairs: (1 and 18), (2 and 9), (3 and 6). The factors of 18 are 1, 2, 3, 6, 9, 18.

What are 5 multiples of 18?

1 Answer. 18,36,54,72,90 are first five multiples of 18 .

How many factors has 16?

So 1, 2, 4, and 8 are factors of 16. Students only need to try the numbers up to half the number for which they are finding the factors. Numbers greater than half will not divide evenly.

What is the smallest number with 4 factors?

66 is the smallest number that have 4 factors.

What are factors of 18?

Table of Factors and MultiplesFactorsMultiples1, 2, 4, 8, 16161121, 17171191, 2, 3, 6, 9, 18181261, 191913341 more rows