The smallest number which has the factors 3,5 and 7 is none other than the least common multiple of the above mentioned numbers. Hence we have to find the LCM of these numbers which comes out to be 105.
What is the smallest factor of a prime number?
Prime number is number which appears only in table of 1 and the number itself. 1 is neither prime number nor composite number. 2 is the smallest even prime number. Therefore, 2 is the smallest prime number.
Are 11 and 7 prime numbers?
Prime numbers list. List of prime numbers up to 100: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97.
What is the smallest number that is a multiple of 3 and 7?
Least Common Multiple of 3 and 7 Free LCM Calculator determines the least common multiple (LCM) between 3 and 7 the smallest integer that is 21 that is divisible by both numbers. Least Common Multiple (LCM) of 3 and 7 is 21.
Which is the smallest number with 7 prime factors?
The smallest number with seven distinct prime factors is 2*3*5*7*11*13*17 = 510510. You can take any seven different prime factors, multiply them together, and you’ll have a number with seven different prime factors – by definition. P.S.
Which is an example of a prime factor?
For example, the prime factors of 126 will be 2, 3 and 7 as 2 × 3 × 7 = 126 and 2, 3, 7 are primes. The prime numbers when multiplied by any natural numbers or whole numbers ( but not 0), gives composite numbers.
What’s the smallest composite number that has the five?
2, − 2,3, − 3,5, − 5,… So the smallest composite integers with the five smallest prime integers as factors are: ±(2 ⋅ 3 ⋅ 5) = ± 30. If we consider Gaussian integers, then the smallest primes are: 1 + i, 1 − i, −1 +i, −1 −i, 1 +2i, 1 −2i, −1 +2i, −1 −2i, 2 + i, 2 − i, −2 + i, −2 −i, 3, −3 ,…
How do you create a prime factor tree?
Creating a factor tree involves breaking up the composite number into factors of the composite number, until all of the numbers are prime. In the example below, the prime factors are found by dividing 820 by a prime factor, 2, then continuing to divide the result until all factors are prime.
