By What numbers has 42 as a multiple?
Multiples of 42 are 42, 84, 126, 168, 210, 252, 294, 336, 378 and so on.
What are the correct factors of 42?
The factors of 42 are 1, 2, 3, 6, 7, 14, 21, and 42.
How many factors does 42 have?
8
Therefore the total number of factors that 42 has is 8 and they are 1, 2, 3, 6, 7, 14, 21, and 42. Pairs of factors is another approach of finding factors of a number.
What are the prime multiples of 42?
So, the prime factors of 42 are 2 × 3 × 7, where 2, 3 and 7 are prime numbers.
What are the factors and multiples of 42?
Table of Factors and Multiples
| Factors | Multiples | |
|---|---|---|
| 1, 41 | 41 | 82 |
| 1, 2, 3, 6, 7, 14, 21, 42 | 42 | 84 |
| 1, 43 | 43 | 86 |
| 1, 2, 4, 11, 22, 44 | 44 | 88 |
What are the common multiples of 42 and 14?
To calculate the LCM of 14 and 42 by listing out the common multiples, we can follow the given below steps:
- Step 1: List a few multiples of 14 (14, 28, 42, 56, 70, 84, . . . ) and 42 (42, 84, 126, 168, 210, . . . . )
- Step 2: The common multiples from the multiples of 14 and 42 are 42, 84, . . .
Why is 42 not a prime number?
No, 42 is not a prime number. The number 42 is divisible by 1, 2, 3, 6, 7, 14, 21, 42. Since 42 has more than two factors, i.e. 1, 2, 3, 6, 7, 14, 21, 42, it is not a prime number.
Is 42 a perfect square?
The number 42 is not a perfect square. The square root of -42 is an imaginary number. The square root of 42 is an irrational number.
What are the divisors of 42?
Divisors of numbers
| Number | Prime factorization | Divisors |
|---|---|---|
| 40 | 23 * 5 | 1, 2, 4, 5, 8, 10, 20, 40 |
| 41 | 41 | 1, 41 |
| 42 | 2 * 3 * 7 | 1, 2, 3, 6, 7, 14, 21, 42 |
| 43 | 43 | 1, 43 |
What is the LCM of 30 and 42?
210
Answer: LCM of 30 and 42 is 210.
What is the lowest common multiple of 14 42?
The LCM of 14 and 42 is 42.
Is 42 a co prime number?
We say that two numbers are coprime if their greatest common divisor is 1. In other words two numbers are coprime if the only divisor that they have in common is the number 1. 42 and 56 are not coprime, since 2 divides into 42 and 56 (as do many other numbers).