The factors of 42 are 1, 2, 3, 6, 7, 14, 21, and 42. Hence, the sum is 96.
No, 42 is not a prime number. The number 42 is divisible by 1, 2, 3, 6, 7, 14, 21, 42. For a number to be classified as a prime number, it should have exactly two factors. Since 42 has more than two factors, i.e. 1, 2, 3, 6, 7, 14, 21, 42, it is not a prime number.
The sum of prime factors function is also known as the integer logarithm.
42=2×3×7← product of prime factors.
The largest prime factor of 42 is 7. The number 42 can be written as: 42 = 2 x 3 x 7. Positive factors: 1, 2, 3, 6, 7, 14, 21, and 42.
(iii) The sum of two prime numbers is always a prime number.
A perfect number is a positive integer that is equal to the sum of its factors excluding the number itself. For example, 6 is a perfect number because when we add all its factors except 6, we get, 1 + 2 + 3 = 6. We get the sum as the number itself. Therefore, 6 is a perfect number.
What is the sum of the factors of 42? The factors of 42 are 1, 2, 3, 6, 7, 14, 21, and 42. Hence, the sum is 96.
In this case 2, 3, 6, and 7 are all numbers you can multiply to get 42. So, they are all factors of 42.
The list of first few multiples of 42 are 42, 84, 126, 168, 210, 252, 294, 336, 378, 420, 462, 504, 546, 588, 630, 672, 714, 756, 798, 840,……. these are the multiples obtained by multiplication of 42 with the first 20 natural numbers.
(C) The sum of all the factors of 60 is equal to 164. The total of the factors is; 1+2+ 3+4+5+ 6+10+ 12+ 15+ 20+30+60=168.
The factors of 100 are 1, 2, 4, 5, 10, 20, 25, 50 and 100. Hence, the sum is 217.
The sum of all factors of 20 is 42. Its Prime Factors are 1, 2, 4, 5, 10, 20 and (1, 20), (2, 10) and (4, 5) are Pair Factors. What are Factors of 20?
Goldbach's conjecture is one of the oldest and best-known unsolved problems in number theory and all of mathematics. It states: ”Every even integer greater than 2 can be expressed as the sum of two primes”.
First two prime number are 2, 3. Their sum is 2 + 3 = 5.
What is the sum of the factors of 40? The factors of 40 are 1, 2, 4, 5, 8, 10, 20 and 40. So, the sum of factors of 40 is 90.
Prime Factorization of 48
Therefore, the sum of all factors of 48 is 124.
The prime factorisation of 24 gives 2 x 2 x 2 x 3 = 23 x 3, where 2 and 3 are the prime factors of 24. The sum of factors of 24 is 60.
Let us begin by defining what a prime number is: a prime number is a number that is divisible by only itself and 1. Since we know that 42 has more than two factors, then we can come to the conclusion that 42 is not a prime number and thus we say that 42 is a composite number.
Prime factorization of 40 and 42 is (2 × 2 × 2 × 5) and (2 × 3 × 7) respectively. As visible, 40 and 42 have only one common prime factor i.e. 2. Hence, the GCF of 40 and 42 is 2.
181 has 2 factors, 1 and 181. It is the 42nd prime number, and the seventeenth prime number from 101-200.